Finally someone who knows what they’re doing. Congrats. I’ve got 3 trailer shops and you’re honestly the only shop so far I’ve seen that knows their head from their rear end on this subject. Great job
In 48 years as a Grand Master Marine Tech, I never installed a "dry" brg., always packed with a brg. packer, always filled the hub completely full, always filled the brg. buddy 3/4 full & then pressed it in place. Brg. diaphragm presses out & excess grease squirts out. Tested this against just packing brgs. on one hub & full buddy on the other. 25 mile trip & then backed it into the lake. Left for 10 minutes & disassembled. Buddy side was cool & no water. Packed side cool & had quite a bit of water in hub. You did a good job on this video. Cooling a hot hub with lake water draws water in, & I'm a "greaser".
@@Maurice-c6z But soaking the hub in cold water after a long hot trip sucks water into any bearing... other than a bearing buddy which can compensate for the sudden contraction of the air in the bearing housing. You get the same effect on a car axle when the diff breathers rust/clog up.... the suction of the contracting air within the whole axle housing sucks water into the axle bearings and sometimes into the pinion bearing as well..... 4wd trucks should have extended breather hoses (take the cap installed OEM and remove it; fit an EFI fuel hose over the breather pipe and extend the hose up into the engine compartment and put the end up as high as possible at the firewall with a cheap plastic fuel filter on the end as an air filter...this allows expansion and contraction of the air without causing a vacuum or overpressure in the axle... A really serious water crosser will extend the breathers to just under the top of the roll cage bar....
I was 100 miles from home, stopped for lunch and saw my boat trailer wheel about to fall off the trailer. My neighbor's girlfriend brought us my 16' flatbed trailer. With both trailers ass to ass we loaded the flatbed. Made it home. Now thanks to your video I'm replacing all bearings and races. Three axles in a day should be a good day. 😊 I sold a weed eater to the pawn shop for ten bucks. Thanks again.😊
great educational video. i spent years running trailers with bearing buddies and had no idea how they worked or how to repack. i’d just pump grease into them until the color changed. hand tested the hubs when on the road to make sure not hot. mostly short runs to the lake nearby with an occasional 300 mile and later 1,000 mile runs. fortunately never had a roadside failure…knock on wood. NOW I KNOW. thank you!
Have always used the palm method of packing bearings, never had issues. Bearing buddies are an easy way to add additional grease to the outboard bearing, the inner not so convinced. Thanks for the great video
Me too. When I got my boat and trailer the first thing I did was go over the wheel bearings and seals, and install Bearing Buddies. Completely packed the hub with marine grease. However, I wanted to make sure this would not cause any overheating so took it out on a freeway run for half and hour (was a scorching hot day) and afterwards the bearing housing was not even warm. I don't like the idea of having any air in the wheel hub, which will contract a lot more than what grease will when the hub is submerged in cold water.
Variation on the palm packing method is to put the grease in a ziplock bag with the bearing. Close the bag and pack it into the bearing, almost no mess this way.
Great idea. I'm an auto sparky, and am actually allergic to grease. For while we had a temporary manager who wanted me to grease lighting trailer bearings when I wasn't busy.
Used the palm of my hand to pack hundreds of bearings,what I liked is I could see the grease Come out of the bearing completely on the exposed side,ensuring a good pack !
I used to work at a trailer manufacturing company and then a trailer axle manufacturer. You're right, first pack the bearings with a manual bearing packer, then install the Bearing Buddy and insert a flattened out finish nail between the axle and the inner seal (the 1 furthest from the Bearing Buddy), creating a vent. Pump the hubs with grease until it comes out the vent you created with the nail. Remove the nail and then you are completely packed and safe for travel.
I drill and tap an 1/8" pipe thread hole between the inner bearing race and the seal. When greasing, I remove the 1/8" plug. It allows the air to escape the inner area while greasing. Re-install the plug, then re-pressure the bearing buddy.
When i replaced the acle on my utility trailer, i replaced it with an axle the had drilled spindles. Spindles are drilled through to just in front of the seal. So you pump grease to the back of the inner bearing out to the front. Works really well. Still pack the bearings and hub full of grease before assembly.
Over greasing can push the grease out the inside seal and all over your rim. I know this because I found this out years ago when I started using Bearing Buddys. Just grease until the spring starts to move about 1/16" to 1/8" out and stop. As long as there is a little pressure on the grease, the water won't get in.
I completely fill my hubs and have never had that issue. The Bearing Buddies let out any excess grease. My guess is the seal or the surface on which the seal sits was not 100%. Any seals I've used have a double lip, one to keep grease in, and the other to keep dirt out. From the inside, pressure acts on the lip to make it seal more, so the only way for grease to get out is to blow the lip out, or the seal/seal surface is bad.
Sold my 4x8 bolt together Northen tool trailor to a neighber 20 years ago he used that trailor with the 480x8 tires and wheels to go back and forth from NC to TX 3 times. He put buddies on it and would add greece at 500 miles at 60-70 mph back and forth. He still owns the trailor and probably has 10,000 miles on it! Still same bearings and buddies. Not bad!
Been using Bearing Buddy's on my boat trailer axle bearings in saltwater environments for 20+ years resulting in ZERO bearing failures. Just a couple of pumps on the grease gun into each hub before every trip to keep them full of grease. Bearing Buddy works on the principal of filling the air cavity, inside the hub between the inner seal and the bearing Buddy, completely full of grease under positive pressure, allowing no space for water/contaminates to enter the bearings.
I worked in a triler shop in Florida as a youngster. Replacing bearings was our bread & butter. When you drive, the bearings will heat up. When you back it into the water, they will cool. Cooling will cause a vacuum and Bearing Buddies will stop them from sucking in water. Without them, you WILL have water in your hub. One caviat... you have to actually pump grease into them.
That bearing buddy and EZ Lube has so many RVers believing they never need to do annual wheel bearing maintenance. I still pull hubs and pack bearings with my $27.00 Rural King bearing packer. Cheap and so easy, to do it right. Plus, pull hubs and you can check your brakes.
@@MudflyWatersman They don't blow the seal out. The highest pressure that a BB provides is 3psi. If that makes your seal leak then you have a bad seal and the BB did you a favor and let you know. This info is critical in a marine application.
@billy-bo-dilly exactly, as an oyster fisherman I haul my boat every day, with bearing buddy's I've gone 10 years without replacing bearings, and they are in salt water every day
@@wasupfool5692 That's awesome. I had Bearing Buddies on a boat trailer that I used frequently and did not pull the hubs for 19 years. The bearings looked brand new. BBs are far superior to EZ Lube types in marine applications. EZ Lube hubs do NOTHING to keep water OUT of the bearings.
Good test video for the bearing buddy. Especially appreciate the breakdown after a dry fill to see how well it fills/missed the back bearing. I wonder how well the bearing buddy would have worked if starting from a bearing maintenance situation in which just replacing old grease in the bearings. Thanks man for the video. I’ll learned a lot watching you. Testing this out.
Thank you for the information, always helpful to have the proper procedure. I have the ez lube system but added a bearing buddy bra to it and it helps keep water out the ez lube hub.
I have Bearing Buddy and other like products on my trailers. Your video just confirmed what I always believed to be the weak point. The Bearing Buddy just doesn't get grease to the inner bearing. If I have to pull things apart to repack the inner bearing I might as well skip the Bearing Buddy. As per this video, it probably is worthwhile for a boat trailer. Enjoyed the video.
You are not doing it right. That void in the trailer hub that will take half a grease cartridge to fill...needs to be completely filled manually by you. Grease being a solid is not compressible. So if that void is filled by you after you have packed the inner bearing.... any grease pumped in the zerk of the bearing buddy will "pressure" ALL the other parts of the bearings... and that filled void... equally... So the inner bearing HAS to be filled with grease just by pumping the grease in until the bearing buddy automatically relieves the pressure via the spring loaded cap and the built in vent hole.... There can be no voids and no grease free areas within the hub, both bearings and the bearing buddy... The only place any grease should ever come from is that built in vent hole...the whole system is self regulating.
I always thought the Bearing Buddy Bra was rain protection as well as a grease protector. I am an over greaser on a re-new or repack but most comes out when the axle is pushed through!! When tightening the adjustment nut i spin the hub.....what ever spills out I add into the cap or buddy. My repacks last me years of use. Never had a bearing failure!! 😊
Not in the past, when I didn’t have something that was a regular grease packer for the bearings. I would take a sandwich bag and fill it with grease put the bearing in it seal the bag and then squeeze it in grease would go everywhere through it. it really worked well, that was like 60 years ago
Best I can tell, bearing buddies help keep water out of the hub. You see a lot of boat trailers with a wheel missing on the way home. When the warm hub is backed into the water, it sucks dirty water into the hub. On the way home, the hub warms up, the water evaporates, and leaves the dirt behind to grind the bearings to powder.
I learned with the bearing buddies you can over grease and blow grease out the back seal......it winds up all over the inside of the wheels.....now every couple trips I will pop the grease gun on and pump until I just see the spring move or the blue disk....I know it's preloaded. No water and no grease on wheels......this is done AFTER I prepack bearings and hub. Also my trailers are marine trailers.
When I purchased my trailer new. The manufacturer told me to grease the hubs because they don’t grease them. Thank goodness he told me that because I had 400 miles to drive it home.
I picked up a used boat & trailer with 4.80 X 8 tires in 1987 and I barely got it home on wasted bearings. I replaced the bearings & seals and installed Bearing Buddies using marine waterproof grease, then never worried about the bearings again for 25 years of heavy use dropping the boat into water at least 4+ times a week and trips of 700 miles or more. My trailer bearing worries were an occasional couple of slow pumps of grease to fill the Bearing Buddy until grease came out of the weep hole in the side of the Bearing Buddy and that was it, now if only Bearing Buddy can do something about those 'May Pop 4.80 X 8 Tires' on my trailer...
I have them on all my trailers marine and over the road. Installed and used correctly the are a game changer. Don’t like the bras, hold water and always fall off
I think the bearing buddy is best designed for boats. The bearings heat up on the road, and when backed into cold water they cool rapidly, possibly drawing in water. The device keeps the water out of the bearings. My small snowmobile trailer uses the same size tires found on golf carts. I have made 4 cross country trips with no issues without the buddy’s. My biggest complaint about the device is trying to remove them to service the bearings.
I used to go 450 miles North of Sault Ste. Marie into Northern Ontario, Canada 3 or 4 times per year to fish with an 18-1/2' aluminum closed bow boat & 90 HP Mercury outboard motor on a trailer. I bought bearing buddies and installed them after l cleaned and hand packed the bearings on that single axle trailer. I bought one of those little (6''?) grease guns to fill them with after l pulled it out of the lake. I'd stop after 50/60 miles and feel the hubs. If they were warm I'd give them a few pumps and take off again. In about 50/60 miles i'd feel them again. They'd always cool off and feel less than "warm." I've had guys tell me that my bearings couldn't be "cool," but they were. Even going into Canada for 2 weeks and filling that boat w/ food, gas & enough junk to fish, putter on the cabin, and all the paraphernalia you can imagine. It was heavy and l never ever had a problem with the bearings. They are on my tandem axle car hauler too. They were on it from Lorimore. I think the World of them. ben/ michigan
Our Rockwood Roo has Dexter easy lube axles. When I greased them after the first year of use, two wheels took a whole tube of grease. Since then, only a few shots and are good.
Trust me, "...a few shots are we're good" is NOT good enough. Take those wheels off every two years, clean those bearings, and repack them manually. I have the same EZ Lube bearings on my 2011 KZ trailer. Previous owner never repacked bearings for 9 years. When I removed the bearings in 2020, they were blue from overheating.
Thank you. I have never seen anyone try and "pack" the bearing using a bearing buddy. I didn't think it would work. I have seen a lot of people use them on road trailers thinking they will act like EZ lube spindles. Obviously it does not.
I love buddies they keep my shop packed with trailer work. Every buddy trailer at the ramp has blows out seals from customers over filling with buddies blowning out the rear seal from the spring pressure . Keep installing that junk it makes me lots of 🤑💰Sure lube axles best in invention since the wheel ,if you have a grease nipple on your axle keep use it and keep that garbage off your trailer.
Bought a new boat this year and the trailer came with "Vault Bearing buddies". They are filled with a heavy oil similar to tractor trailers. No maintenance, 10 yr warranty . New to me, we'll see how they hold up,
I repacked the bearings on our dairy farm 40 years ago. Lube with 140 gear lube, half full. Never lost a bearing. Just had to check the 96 bearings yearly for water contamination, and refill at the half full level. Wet bearings don’t chicken-track, as the heat is dissipated. My opinion…..
I put a little layer of grease on the rubber plastic bra on the inside where it slides onto the bearing buddy. For one to keep it on the bearing buddy and two to keep water from getting in when backing into the water, Then when I get home, I take the rubber caps (bras) off to make sure everything is dry.
As a lazy RVer I’m usually an over-greaser… just very infrequently! I tend to live by “If some is good then more must be better… especially if it’s ice cream!”😁
Not a fan Of the easy lube bearing buddy I just finished Repacking and replacing the seals on my cargo trailer Upgraded my springs Upgrade my springs to £4,000 springs And hand And hand A hand Reassembled All is I understand I understand the purpose of the bearing buddy for marine trailer Because because getting underwater Keeping the water out of the bearing Make sense Thanks for the info and videos Randy
Wearing gloves is a good thing, not just to keep your hands clean, but solvents and cleaners can get into your blood stream through your skin. After years of contact with solvents of various types, after 55-60 years, I was diagnosed with bladder cancer. One thing the doctor asked me was what I did for a living, and I told him and he asked me about contacts with solvents and chemicals. He said that is just another way to have the chemicals get into your system....
I too have bladder cancer. I'm convinced after extensive research that it was caused by over 35 years of handling PVC pipe solvent and primer while not wearing gloves. I ignored the fine print warnings on the products and now I am paying the price.
Nice info, wish I would watched sooner. I just changed out bearing on a boat and took the whole thing apart and replaced races and bearings and pumped it full of what I had at the farm, Lucas X tra heavy duty grease. Says right on the label "perfect for high temps and high speed bearings". Then watching your video and flipping around went to the Lucas sight where they have their greases listed, and in a comparison chart, there it says "not for boat bearings"? Still had it on jack stands so went back and redid them with the right grease, and put on some bearing buddies. Figured their heavy duty bearing grease would be OK, guess not, Great channel
On marine stuff I would over grease on the rest of my trailers. I would use less. I have a liberty storage trailer that I tow for construction work that I bought in 1990 I’ll take everything apart and repack it and still the original bearings. I’ve changed the seals. Other than that things are working well I have an old holiday rapper 32 footRV, I’ve done the same with it has the original bearing in it. It’s got lots of miles on it but good maintenance is preventative program. Thanks, John.
Great video and instructions! I am an overgreaser. Rick Pierce of Bass Cat boats builds a great trailer! He is not a fan of bearing buddies because of people over greasing. And blowing out the seals so now what I do after a tear down is don’t use the grease gun after packing the grease in the axle. After you drive the boat to the boat ramp check and see if the inner bearing buddy has any wiggle to it. If it does do not put any more grease in it if it doesn’t pump new grease until the inner bearing buddy comes out just a fraction. Now you know you have just enough inner grease pressure to prevent any water and don’t use the grease gun again unless you have a seal blowout and only grease for emergency.
YES, this is the point I was going to make and 1st I read down and you nailed it. Also, watch the Timken video, and it will say NOT to fill the entire hub volume with grease ( will cause "churning", whatever that is). The Bearing Buddy is not intended to replace regular bearing maintenance. It is intended to instantly pressurize your hubs to prevent water entry.
The best I have found is a synthetic wheel bearing grease that WILL not mix with water ever. Power Punch was my go to, bought a case of it years ago, still have half of them left.
Great videos! But im totally confused. How do you know when you have applied to much grease, or to little grease? I have read to much grease is just as bad as not enough. How does one know? I would think packing the hub with grease would fall under the to much grease. Any help would be greatly appreciated.
There is a spring that pushes a seal inward. When the grease is pumped in and has filled all the voids, the seal will move outward. There is a hole for grease to come out which means it’s filled.
Always hand pack and do routine checks. Every axle I've ever worked on with those has had the back seal blow out and grease slinging into the brakes. Over greasers
I've always over greased ever since I was a teenager doing my bicycles yearly. The grease displaces any area water can intrude into. I'm not to concerned about the rear seal as it gets replaced every time you pull the hub.
Not a fan of bearing buddies. I'm an old guy ,still hand pack all bearings. The problem I have with filling the hub is I believe it will overheat due to rollers pushing thru all of it. In younger years always packed bear handed and most likely cleaned up w/a spray solvent. R11 was best degrease. Might try Loctite 515 sealer. Doesn't set up easy to disassemble. Not cheap though
I’ve been using something similar on my utility trailer here in the north east for years. As you stated with proper maintenance, they won’t last a long time. My only criticism on this video would be as you expressed you need to clean everything thoroughly, the wheel studs are probably the most important as if there’s any lubrication on no studs it will affect the wheel nut torque value.I would think that if someone was able enough to install the buddies that they would know about keeping the wheel studs clean. Just my opinion.
My bearing buddies have a pinhole relief for when they’re full. And now a few miles on the trailer when I grease it will push just a little old grease out the rear hub seal
Problem with Bearing Buddy is it will blow out the inner seal over time. Spring pressure grease will have to go somewhere. Both my trailers with Bearing Buddy's have the inner rim coated with grease from the inner hub seal. As long as you always have positive grease in the bearing, it does not matter if inner seal leaks. The good thing is that when the inner seal leaks, at least you know grease is flowing through the hub. Do not use bearing buddies on brake hubs as the grease from the inner seal will contaminate the brake linings.
The BB will not blow your inner seal. If pressure exceeds 3 psi, the spring moves out far enough to open a bypass. The grease will move into the open cavity in the front of the BB. If you are getting grease past your inner seal, the slight positive pressure is showing that your seal is compromised.
Geoff, your doing it wrong! First you need to use a double lipped rear seal. I use Redline from NAPA. A single lip seal can have seapage. You only grease till the piston just raises off its seat when the bearings are cold. As it heats up the grease will expand and the piston will come out a bit more. If you fill too full when cold then when the bearings heat up the pressure may not relive fast enough and it can blow out the rear seal.
What grease do you recommend for trailer hub bearings? I watched your video with the dexter axle and the grease system through the spindle. I noticed you had red grease and I saw the tube for mystic JT6. Is that the grease you recommend? Or a different high temp grease. Great videos, information, and presentation. Thank you
I never knew those existed. I just thought if you didn’t have the grease fitting on the axle itself if you had to manually take everything apart and repack
45 years working on boat trailers sold many pair bearing buddies , 99% people will not fill correctly that is plain truth , I have NEVER seen the need for a bearing buddy . I install my hubs packed correctly , install large backing o ring on seal , put metal cap on with rv sealer always use best grade marine grease repack once every year. grease never goes anywhere so never need to add any I have NO water contamination . use my boat all winter long never any problems
I thought I knew everything there was about packing bearings but I learned a new trick today! I've NEVER heard of putting silicone sealant on the bearing seal and outer cap but I will start using that method now. Is using the sealant for all applications or just boat trailers that get submersed in water? Either way I see an advantage to prevent water from entering the inner hub cavity. GREAT video!!
Why is grease escaping out the front between the center spring loaded plug and the outer barrel? Shouldn't there be a seal there to prevent the grease coming out under spring pressure to the point where the inner cavity is no longer pressurized? I've had two sets of bearing buddies on my trailers, one that I installed and one that came on a new trailer from the factory. Only the second set leak grease from the front side as shown in your video. I figured there was something wrong with the 2nd set but yours after doing that too.
The Pawn Shop in my town has barrels full of ten dollar weed whackers . And the place is sourrounded with apartment buildings full of people who will never ever even come close to owning a single blade of grass themselves ever in their lifetimes or living in a place where they can walk directly out the door to go outside . Stack and pack apartments everywhere .
I have never packed a bearing, but know about lubrication. Under greasing will cause damage and failure. Over greasing will just get slung off in service. Pleas err on the side of over greasing.
Judging by the copious amounts of shop towels/rags I go through, I think I am in the over greaser category. Is the use of sealant called in the BB instructions besides the 1980T (Threaded) models? I have repeatedly had the stainless steel BBs fall off the hub on rough roads and I wonder if the sealant will act like an adhesive and help retain them better? I have even replaced the hubs thinking the bore was too loose, but that hasn't made a difference. Seems that the interference fit is too loose and after 1 or 2 removals it loosens even further and tumbling down the road they go. I have even tried not adding grease after install to see if the pressure was causing it to push off, no difference. It is getting really expensive to keep replacing the lost BBs, especially the stainless ones. I have yet to lose a cheap knock-off BB like the ones from wal-mart, only issue is that they leak grease out the center where the genuine BBs don't.
Question. I bought rubber seals from northern tool when I repacked my bearings. Should I use RTV on the outside to seal or take it apart and put RTV the way you did?
The cheese can RTV dispenser is cool. How long will your RTV last in a can like that? Do you guys have or ever use lock and lube adapters on your grease guns? If not, you should, well worth the extra $!! Best money I've ever spent and did to my grease gun. They make a stubby and a long style, each has their place. Dont go generic.
I lost a bearing buddy revently and unfortunately backed into the lake without it. Does the whole bearing need to be disassembled and repacked now, or could I clean it up outside of the nut with the cotter pin, repack the new bearing buddy with grease and go? Thanks for the great video!
I’m having a problem with one side of my boat trailer falling off, I seems tight when installed but it loosens. I just tried locktite blue on it ? I don’t expect it will work, I’ll probably have to replace the hub, why this is happening I can’t figure out ? Thanks,
I have the ez lube system on my boat trailer and would like to switch to bearing buddies. Can you remove the zurk and lube the system the same as you would on a standard axel?
Question: I have been using buddy bearing for years on my little 15’ boat trailer, recently I have has grease coming out of the bearing buddy, I installed a brand new one and still doing it. I am pumping grease in just as always til it comes out fill hole. Can’t figure out why I even cleaned it out and did a 20 mile test and yup bearing buddy throwing grease out. Help!!!
If you put too much grease in the hub when the bearings start to turn it displaces the grease builds up pressure in the hub and will push the bearing buddy out of the hub. Never could be seen again.
IMO it's better to take the time and hand-pack the bearings using water-resistant or water-proof grease. To easy to blow out inner seal using bearing buddies.
I watched this video and remembered I need to replace the bearings on my 4x8 harbor freight trailer......Do you know what bearings and seals I need to go get???
My 1991 ranger trailer has the ez lube spindles. I recently had my trailer worked on and the shop installed bearing buddies. is it ok to use these with ez lube axles instead of the traditional caps?
Finally someone who knows what they’re doing. Congrats. I’ve got 3 trailer shops and you’re honestly the only shop so far I’ve seen that knows their head from their rear end on this subject.
Great job
In 48 years as a Grand Master Marine Tech, I never installed a "dry" brg., always packed with a brg. packer, always filled the hub completely full, always filled the brg. buddy 3/4 full & then pressed it in place. Brg. diaphragm presses out & excess grease squirts out. Tested this against just packing brgs. on one hub & full buddy on the other. 25 mile trip & then backed it into the lake. Left for 10 minutes & disassembled. Buddy side was cool & no water. Packed side cool & had quite a bit of water in hub. You did a good job on this video. Cooling a hot hub with lake water draws water in, & I'm a "greaser".
Can't get proper preload if your bearings are dry!
Can't get a proper preload on the bearings if they are installed dry!
Yep, no bearing failures for us for over 40 years with the bearings buddies !
@@Chevytech1977 Grease does not migrate, a full bearing is all it needs or will ever use
@@Maurice-c6z
But soaking the hub in cold water after a long hot trip sucks water into any bearing...
other than a bearing buddy which can compensate for the sudden contraction of the air in the bearing housing.
You get the same effect on a car axle when the diff breathers rust/clog up....
the suction of the contracting air within the whole axle housing sucks water into the axle bearings and sometimes into the pinion bearing as well.....
4wd trucks should have extended breather hoses (take the cap installed OEM and remove it; fit an EFI fuel hose over the breather pipe and extend the hose up into the engine compartment
and put the end up as high as possible at the firewall with a cheap plastic fuel filter on the end as an air filter...this allows expansion and contraction of the air without causing a vacuum or overpressure in the axle...
A really serious water crosser will extend the breathers to just under the top of the roll cage bar....
I was 100 miles from home, stopped for lunch and saw my boat trailer wheel about to fall off the trailer. My neighbor's girlfriend brought us my 16' flatbed trailer. With both trailers ass to ass we loaded the flatbed. Made it home. Now thanks to your video I'm replacing all bearings and races. Three axles in a day should be a good day. 😊 I sold a weed eater to the pawn shop for ten bucks. Thanks again.😊
great educational video. i spent years running trailers with bearing buddies and had no idea how they worked or how to repack. i’d just pump grease into them until the color changed. hand tested the hubs when on the road to make sure not hot. mostly short runs to the lake nearby with an occasional 300 mile and later 1,000 mile runs. fortunately never had a roadside failure…knock on wood. NOW I KNOW. thank you!
This is the 1st video I've ever seen on how to do this. I've learned a lot. Thanks for the info and a great video.
Glad it was helpful!
@@TheTrailerSmith yes sir! Thank ya!
Have always used the palm method of packing bearings, never had issues. Bearing buddies are an easy way to add additional grease to the outboard bearing, the inner not so convinced. Thanks for the great video
👍👍I am definitely an over greaser. "Hotter than a ten dollar weed eater at the pawn shop" is a keeper. Thank you for that. 😉👍
😁
Thanks for watching!
That phrase had me LMFAO
Me too. When I got my boat and trailer the first thing I did was go over the wheel bearings and seals, and install Bearing Buddies. Completely packed the hub with marine grease. However, I wanted to make sure this would not cause any overheating so took it out on a freeway run for half and hour (was a scorching hot day) and afterwards the bearing housing was not even warm. I don't like the idea of having any air in the wheel hub, which will contract a lot more than what grease will when the hub is submerged in cold water.
Variation on the palm packing method is to put the grease in a ziplock bag with the bearing. Close the bag and pack it into the bearing, almost no mess this way.
I like that.
Great idea.
I'm an auto sparky, and am actually allergic to grease. For while we had a temporary manager who wanted me to grease lighting trailer bearings when I wasn't busy.
Used the palm of my hand to pack hundreds of bearings,what I liked is I could see the grease Come out of the bearing completely on the exposed side,ensuring a good pack !
That’s a good point! Thanks for watching!
I used to work at a trailer manufacturing company and then a trailer axle manufacturer. You're right, first pack the bearings with a manual bearing packer, then install the Bearing Buddy and insert a flattened out finish nail between the axle and the inner seal (the 1 furthest from the Bearing Buddy), creating a vent. Pump the hubs with grease until it comes out the vent you created with the nail. Remove the nail and then you are completely packed and safe for travel.
Thanks Trailer Smith! Very helpful! 🙂
Remember that God loves you!
I drill and tap an 1/8" pipe thread hole between the inner bearing race and the seal. When greasing, I remove the 1/8" plug. It allows the air to escape the inner area while greasing. Re-install the plug, then re-pressure the bearing buddy.
I have used a ziplock to pack bearing. It works pretty well and not as messy.
When i replaced the acle on my utility trailer, i replaced it with an axle the had drilled spindles.
Spindles are drilled through to just in front of the seal. So you pump grease to the back of the inner bearing out to the front. Works really well.
Still pack the bearings and hub full of grease before assembly.
Yes they work but, these are for land use only. Marine needs bearing buddies.
how's the acle now?
😂@@osmith5086
Excellent demonstration and guidance for use. Looking forward to your other you tubes! thank you
This guy and his comments are cool. Enjoyed this video.
Thanks for watching!
Good for you on the P P E ,💪👍 it works!
Fantastic hands on, as always my friend.
Thank you for watching!
My best friends grandfather invented these things. I’ve heard they were completely game changing but cool to see for myself.
Over greasing can push the grease out the inside seal and all over your rim. I know this because I found this out years ago when I started using Bearing Buddys. Just grease until the spring starts to move about 1/16" to 1/8" out and stop. As long as there is a little pressure on the grease, the water won't get in.
I completely fill my hubs and have never had that issue. The Bearing Buddies let out any excess grease. My guess is the seal or the surface on which the seal sits was not 100%. Any seals I've used have a double lip, one to keep grease in, and the other to keep dirt out. From the inside, pressure acts on the lip to make it seal more, so the only way for grease to get out is to blow the lip out, or the seal/seal surface is bad.
Sold my 4x8 bolt together Northen tool trailor to a neighber 20 years ago he used that trailor with the 480x8 tires and wheels to go back and forth from NC to TX 3 times. He put buddies on it and would add greece at 500 miles at 60-70 mph back and forth. He still owns the trailor and probably has 10,000 miles on it! Still same bearings and buddies. Not bad!
Smart move on gloves and glasses. Great video.
Been using Bearing Buddy's on my boat trailer axle bearings in saltwater environments for 20+ years resulting in ZERO bearing failures. Just a couple of pumps on the grease gun into each hub before every trip to keep them full of grease. Bearing Buddy works on the principal of filling the air cavity, inside the hub between the inner seal and the bearing Buddy, completely full of grease under positive pressure, allowing no space for water/contaminates to enter the bearings.
I worked in a triler shop in Florida as a youngster. Replacing bearings was our bread & butter. When you drive, the bearings will heat up. When you back it into the water, they will cool. Cooling will cause a vacuum and Bearing Buddies will stop them from sucking in water. Without them, you WILL have water in your hub. One caviat... you have to actually pump grease into them.
did you go to school in Florida?
Used them for over 30 years with out one second of problems.
That bearing buddy and EZ Lube has so many RVers believing they never need to do annual wheel bearing maintenance.
I still pull hubs and pack bearings with my $27.00 Rural King bearing packer. Cheap and so easy, to do it right.
Plus, pull hubs and you can check your brakes.
Annual wheel bearing maintenance also gives the opportunity to check the brakes.
@@rodgraff1782 i believe i said that, “you can check the brakes.”
Bearing Buddies are the best thing since sliced bread in marine applications. The 3 PSI of positive pressure keeps the water out of the hubs.
Not when it blows the rear seal out
@@MudflyWatersman They don't blow the seal out. The highest pressure that a BB provides is 3psi. If that makes your seal leak then you have a bad seal and the BB did you a favor and let you know. This info is critical in a marine application.
@billy-bo-dilly exactly, as an oyster fisherman I haul my boat every day, with bearing buddy's I've gone 10 years without replacing bearings, and they are in salt water every day
@@wasupfool5692 That's awesome. I had Bearing Buddies on a boat trailer that I used frequently and did not pull the hubs for 19 years. The bearings looked brand new. BBs are far superior to EZ Lube types in marine applications. EZ Lube hubs do NOTHING to keep water OUT of the bearings.
Good test video for the bearing buddy. Especially appreciate the breakdown after a dry fill to see how well it fills/missed the back bearing. I wonder how well the bearing buddy would have worked if starting from a bearing maintenance situation in which just replacing old grease in the bearings. Thanks man for the video. I’ll learned a lot watching you. Testing this out.
Thank you for the information, always helpful to have the proper procedure. I have the ez lube system but added a bearing buddy bra to it and it helps keep water out the ez lube hub.
I have Bearing Buddy and other like products on my trailers. Your video just confirmed what I always believed to be the weak point. The Bearing Buddy just doesn't get grease to the inner bearing. If I have to pull things apart to repack the inner bearing I might as well skip the Bearing Buddy. As per this video, it probably is worthwhile for a boat trailer. Enjoyed the video.
You are not doing it right.
That void in the trailer hub that will take half a grease cartridge to fill...needs to be completely filled manually by you.
Grease being a solid is not compressible.
So if that void is filled by you after you have packed the inner bearing....
any grease pumped in the zerk of the bearing buddy will "pressure" ALL the other parts of the bearings... and that filled void... equally...
So the inner bearing HAS to be filled with grease just by pumping the grease in until the bearing buddy automatically relieves the pressure via the spring loaded cap and the built in vent hole....
There can be no voids and no grease free areas within the hub, both bearings and the bearing buddy...
The only place any grease should ever come from is that built in vent hole...the whole system is self regulating.
I always thought the Bearing Buddy Bra was rain protection as well as a grease protector.
I am an over greaser on a re-new or repack but most comes out when the axle is pushed through!! When tightening the adjustment nut i spin the hub.....what ever spills out I add into the cap or buddy. My repacks last me years of use. Never had a bearing failure!! 😊
Not in the past, when I didn’t have something that was a regular grease packer for the bearings. I would take a sandwich bag and fill it with grease put the bearing in it seal the bag and then squeeze it in grease would go everywhere through it. it really worked well, that was like 60 years ago
Best I can tell, bearing buddies help keep water out of the hub.
You see a lot of boat trailers with a wheel missing on the way home. When the warm hub is backed into the water, it sucks dirty water into the hub. On the way home, the hub warms up, the water evaporates, and leaves the dirt behind to grind the bearings to powder.
I learned with the bearing buddies you can over grease and blow grease out the back seal......it winds up all over the inside of the wheels.....now every couple trips I will pop the grease gun on and pump until I just see the spring move or the blue disk....I know it's preloaded. No water and no grease on wheels......this is done AFTER I prepack bearings and hub. Also my trailers are marine trailers.
When I purchased my trailer new. The manufacturer told me to grease the hubs because they don’t grease them. Thank goodness he told me that because I had 400 miles to drive it home.
I picked up a used boat & trailer with 4.80 X 8 tires in 1987 and I barely got it home on wasted bearings. I replaced the bearings & seals and installed Bearing Buddies using marine waterproof grease, then never worried about the bearings again for 25 years of heavy use dropping the boat into water at least 4+ times a week and trips of 700 miles or more. My trailer bearing worries were an occasional couple of slow pumps of grease to fill the Bearing Buddy until grease came out of the weep hole in the side of the Bearing Buddy and that was it, now if only Bearing Buddy can do something about those 'May Pop 4.80 X 8 Tires' on my trailer...
I have them on all my trailers marine and over the road. Installed and used correctly the are a game changer.
Don’t like the bras, hold water and always fall off
I think the bearing buddy is best designed for boats. The bearings heat up on the road, and when backed into cold water they cool rapidly, possibly drawing in water. The device keeps the water out of the bearings.
My small snowmobile trailer uses the same size tires found on golf carts. I have made 4 cross country trips with no issues without the buddy’s. My biggest complaint about the device is trying to remove them to service the bearings.
I used to go 450 miles North of Sault Ste. Marie into Northern Ontario, Canada 3 or 4 times per year to fish with an 18-1/2' aluminum closed bow boat & 90 HP Mercury outboard motor on a trailer. I bought bearing buddies and installed them after l cleaned and hand packed the bearings on that single axle trailer. I bought one of those little (6''?) grease guns to fill them with after l pulled it out of the lake. I'd stop after 50/60 miles and feel the hubs. If they were warm I'd give them a few pumps and take off again. In about 50/60 miles i'd feel them again. They'd always cool off and feel less than "warm." I've had guys tell me that my bearings couldn't be "cool," but they were. Even going into Canada for 2 weeks and filling that boat w/ food, gas & enough junk to fish, putter on the cabin, and all the paraphernalia you can imagine. It was heavy and l never ever had a problem with the bearings. They are on my tandem axle car hauler too. They were on it from Lorimore. I think the World of them. ben/ michigan
Our Rockwood Roo has Dexter easy lube axles. When I greased them after the first year of use, two wheels took a whole tube of grease. Since then, only a few shots and are good.
Trust me, "...a few shots are we're good" is NOT good enough. Take those wheels off every two years, clean those bearings, and repack them manually. I have the same EZ Lube bearings on my 2011 KZ trailer. Previous owner never repacked bearings for 9 years. When I removed the bearings in 2020, they were blue from overheating.
Great video.
Thanks for watching!
Enjoyed the video! Learned a few things, Thanks !😊
So glad! Thank you for watching!
Always great information!
Thanks for watching!
Thank you. I have never seen anyone try and "pack" the bearing using a bearing buddy. I didn't think it would work. I have seen a lot of people use them on road trailers thinking they will act like EZ lube spindles. Obviously it does not.
I love buddies they keep my shop packed with trailer work. Every buddy trailer at the ramp has blows out seals from customers over filling with buddies blowning out the rear seal from the spring pressure . Keep installing that junk it makes me lots of 🤑💰Sure lube axles best in invention since the wheel ,if you have a grease nipple on your axle keep use it and keep that garbage off your trailer.
Bought a new boat this year and the trailer came with "Vault Bearing buddies". They are filled with a heavy oil similar to tractor trailers. No maintenance, 10 yr warranty . New to me, we'll see how they hold up,
Yup,I have them too. 5yrs later, no issues.
I repacked the bearings on our dairy farm 40 years ago. Lube with 140 gear lube, half full. Never lost a bearing. Just had to check the 96 bearings yearly for water contamination, and refill at the half full level. Wet bearings don’t chicken-track, as the heat is dissipated. My opinion…..
@@duanebaalson2287 chicken-track?
I put a little layer of grease on the rubber plastic bra on the inside where it slides onto the bearing buddy. For one to keep it on the bearing buddy and two to keep water from getting in when backing into the water, Then when I get home, I take the rubber caps (bras) off to make sure everything is dry.
As a lazy RVer I’m usually an over-greaser… just very infrequently!
I tend to live by “If some is good then more must be better… especially if it’s ice cream!”😁
“…..more is better” ALWAYS applies to ice cream. Always!
Not a fan Of the easy lube bearing buddy I just finished Repacking and replacing the seals on my cargo trailer Upgraded my springs Upgrade my springs to £4,000 springs And hand And hand A hand Reassembled All is I understand I understand the purpose of the bearing buddy for marine trailer Because because getting underwater Keeping the water out of the bearing Make sense Thanks for the info and videos Randy
Wearing gloves is a good thing, not just to keep your hands clean, but solvents and cleaners can get into your blood stream through your skin. After years of contact with solvents of various types, after 55-60 years, I was diagnosed with bladder cancer. One thing the doctor asked me was what I did for a living, and I told him and he asked me about contacts with solvents and chemicals. He said that is just another way to have the chemicals get into your system....
Prevents Parkinson's as well
I tried gloves. Always end up with a rip in them within 5 minutes of putting them on. Nothing but a waste of money!
I too have bladder cancer. I'm convinced after extensive research that it was caused by over 35 years of handling PVC pipe solvent and primer while not wearing gloves. I ignored the fine print warnings on the products and now I am paying the price.
Nice info, wish I would watched sooner. I just changed out bearing on a boat and took the whole thing apart and replaced races and bearings and pumped it full of what I had at the farm, Lucas X tra heavy duty grease. Says right on the label "perfect for high temps and high speed bearings". Then watching your video and flipping around went to the Lucas sight where they have their greases listed, and in a comparison chart, there it says "not for boat bearings"? Still had it on jack stands so went back and redid them with the right grease, and put on some bearing buddies. Figured their heavy duty bearing grease would be OK, guess not, Great channel
Nice hat. Thanks for the info. Your wife will appreciate the clean hands too!!
I’m sure I’m an over greaser with amsoil blue marine grease. I’ve never had any bearing issues ever but I do “flush” in new grease every year.
Thank you for your knowledge and videos USA 🇺🇸
Thank you for watching!
On marine stuff I would over grease on the rest of my trailers. I would use less. I have a liberty storage trailer that I tow for construction work that I bought in 1990 I’ll take everything apart and repack it and still the original bearings. I’ve changed the seals. Other than that things are working well I have an old holiday rapper 32 footRV, I’ve done the same with it has the original bearing in it. It’s got lots of miles on it but good maintenance is preventative program. Thanks, John.
Thanks for sharing your knowledge. Ask me why.. I’ve been roadside with bearing issues before. No fun.
Great video and instructions! I am an overgreaser. Rick Pierce of Bass Cat boats builds a great trailer! He is not a fan of bearing buddies because of people over greasing. And blowing out the seals so now what I do after a tear down is don’t use the grease gun after packing the grease in the axle. After you drive the boat to the boat ramp check and see if the inner bearing buddy has any wiggle to it. If it does do not put any more grease in it if it doesn’t pump new grease until the inner bearing buddy comes out just a fraction. Now you know you have just enough inner grease pressure to prevent any water and don’t use the grease gun again unless you have a seal blowout and only grease for emergency.
YES, this is the point I was going to make and 1st I read down and you nailed it. Also, watch the Timken video, and it will say NOT to fill the entire hub volume with grease ( will cause "churning", whatever that is). The Bearing Buddy is not intended to replace regular bearing maintenance. It is intended to instantly pressurize your hubs to prevent water entry.
The best I have found is a synthetic wheel bearing grease that WILL not mix with water ever. Power Punch was my go to, bought a case of it years ago, still have half of them left.
My tendency is to over grease, but I learned to temper it long ago.
The rubber caps work great over my regular bearings
Great videos! But im totally confused. How do you know when you have applied to much grease, or to little grease? I have read to much grease is just as bad as not enough. How does one know? I would think packing the hub with grease would fall under the to much grease. Any help would be greatly appreciated.
There is a spring that pushes a seal inward. When the grease is pumped in and has filled all the voids, the seal will move outward. There is a hole for grease to come out which means it’s filled.
Great video. Not sure if I’m an undergreaser or not but not an overgreaser.
What exact grease type and manufacturer are y'all using? My dad taught me how to "palm pack" bearings as a kid. Still do it to this day 👍
Always hand pack and do routine checks. Every axle I've ever worked on with those has had the back seal blow out and grease slinging into the brakes. Over greasers
I've always over greased ever since I was a teenager doing my bicycles yearly. The grease displaces any area water can intrude into. I'm not to concerned about the rear seal as it gets replaced every time you pull the hub.
Not a fan of bearing buddies. I'm an old guy ,still hand pack all bearings. The problem I have with filling the hub is I believe it will overheat due to rollers pushing thru all of it. In younger years always packed bear handed and most likely cleaned up w/a spray solvent. R11 was best degrease. Might try Loctite 515 sealer. Doesn't set up easy to disassemble. Not cheap though
I’ve been using something similar on my utility trailer here in the north east for years. As you stated with proper maintenance, they won’t last a long time. My only criticism on this video would be as you expressed you need to clean everything thoroughly, the wheel studs are probably the most important as if there’s any lubrication on no studs it will affect the wheel nut torque value.I would think that if someone was able enough to install the buddies that they would know about keeping the wheel studs clean. Just my opinion.
i have a question about hub size. I have a 5 on 5 Dexter what are the pros or cons of it vs. a 5 on 4.5 hub 3500 lbs. axle
After 40 years and many boats, I prefer vortex oil, bath in salt water. No guess work. You can see the oil level. Oil changes are a snap.
The oil is not pressurized, thusly water can get in there if a seal leaks.
I am an over greaser. In my 50 yrs of working on things I can't remember too much ever causing a problem.
My bearing buddies have a pinhole relief for when they’re full. And now a few miles on the trailer when I grease it will push just a little old grease out the rear hub seal
I don't know how many brake drums I've pulled of that were packed with grease due to bearing buddys
Problem with Bearing Buddy is it will blow out the inner seal over time. Spring pressure grease will have to go somewhere. Both my trailers with Bearing Buddy's have the inner rim coated with grease from the inner hub seal. As long as you always have positive grease in the bearing, it does not matter if inner seal leaks. The good thing is that when the inner seal leaks, at least you know grease is flowing through the hub. Do not use bearing buddies on brake hubs as the grease from the inner seal will contaminate the brake linings.
You are spot on.
You don’t know how to use them.
The BB will not blow your inner seal. If pressure exceeds 3 psi, the spring moves out far enough to open a bypass. The grease will move into the open cavity in the front of the BB. If you are getting grease past your inner seal, the slight positive pressure is showing that your seal is compromised.
Geoff, your doing it wrong! First you need to use a double lipped rear seal. I use Redline from NAPA. A single lip seal can have seapage. You only grease till the piston just raises off its seat when the bearings are cold. As it heats up the grease will expand and the piston will come out a bit more. If you fill too full when cold then when the bearings heat up the pressure may not relive fast enough and it can blow out the rear seal.
Great video. What is your opinion on a, grease needle for packing bearings ?
What grease do you recommend for trailer hub bearings? I watched your video with the dexter axle and the grease system through the spindle. I noticed you had red grease and I saw the tube for mystic JT6. Is that the grease you recommend? Or a different high temp grease.
Great videos, information, and presentation.
Thank you
I never knew those existed. I just thought if you didn’t have the grease fitting on the axle itself if you had to manually take everything apart and repack
45 years working on boat trailers sold many pair bearing buddies , 99% people will not fill correctly that is plain truth , I have NEVER seen the need for a bearing buddy . I install my hubs packed correctly , install large backing o ring on seal , put metal cap on with rv sealer always use best grade marine grease repack once every year. grease never goes anywhere so never need to add any I have NO water contamination . use my boat all winter long never any problems
How do I get one of those Texas Custom Trailers Truckers caps you got on?
I thought I knew everything there was about packing bearings but I learned a new trick today! I've NEVER heard of putting silicone sealant on the bearing seal and outer cap but I will start using that method now. Is using the sealant for all applications or just boat trailers that get submersed in water? Either way I see an advantage to prevent water from entering the inner hub cavity. GREAT video!!
Why is grease escaping out the front between the center spring loaded plug and the outer barrel? Shouldn't there be a seal there to prevent the grease coming out under spring pressure to the point where the inner cavity is no longer pressurized? I've had two sets of bearing buddies on my trailers, one that I installed and one that came on a new trailer from the factory. Only the second set leak grease from the front side as shown in your video. I figured there was something wrong with the 2nd set but yours after doing that too.
how do you feel about Vortex hubs on boat trailers. Pro/Con
The Pawn Shop in my town has barrels full of ten dollar weed whackers . And the place is sourrounded with apartment buildings full of people who will never ever even come close to owning a single blade of grass themselves ever in their lifetimes or living in a place where they can walk directly out the door to go outside . Stack and pack apartments everywhere .
I have never packed a bearing, but know about lubrication. Under greasing will cause damage and failure. Over greasing will just get slung off in service. Pleas err on the side of over greasing.
They work for me! Never had a problem with them
On my boat trailer using AMSOIL marine grease.
use barrier cream as well if no gloves.. also for cracked fingers take Hemp seed oil,, or even hand cream with UREA..
Judging by the copious amounts of shop towels/rags I go through, I think I am in the over greaser category. Is the use of sealant called in the BB instructions besides the 1980T (Threaded) models? I have repeatedly had the stainless steel BBs fall off the hub on rough roads and I wonder if the sealant will act like an adhesive and help retain them better? I have even replaced the hubs thinking the bore was too loose, but that hasn't made a difference. Seems that the interference fit is too loose and after 1 or 2 removals it loosens even further and tumbling down the road they go. I have even tried not adding grease after install to see if the pressure was causing it to push off, no difference. It is getting really expensive to keep replacing the lost BBs, especially the stainless ones. I have yet to lose a cheap knock-off BB like the ones from wal-mart, only issue is that they leak grease out the center where the genuine BBs don't.
Good points
Thanks for watching!
Question. I bought rubber seals from northern tool when I repacked my bearings. Should I use RTV on the outside to seal or take it apart and put RTV the way you did?
On smaller utility trailers 16’ is there an oiler option? I have grease now and wondering about changing over to oil oiler
The cheese can RTV dispenser is cool. How long will your RTV last in a can like that?
Do you guys have or ever use lock and lube adapters on your grease guns? If not, you should, well worth the extra $!! Best money I've ever spent and did to my grease gun.
They make a stubby and a long style, each has their place. Dont go generic.
I lost a bearing buddy revently and unfortunately backed into the lake without it. Does the whole bearing need to be disassembled and repacked now, or could I clean it up outside of the nut with the cotter pin, repack the new bearing buddy with grease and go? Thanks for the great video!
Best would be to disassemble and start fresh if you're able
Over greaser. Cleaning up is better than waking up in the middle of the night wondering if I put enough in.
I’m having a problem with one side of my boat trailer falling off, I seems tight when installed but it loosens. I just tried locktite blue on it ? I don’t expect it will work, I’ll probably have to replace the hub, why this is happening I can’t figure out ? Thanks,
I have the ez lube system on my boat trailer and would like to switch to bearing buddies. Can you remove the zurk and lube the system the same as you would on a standard axel?
Yes, you can in most cases. Unless you have a specialty hub that won’t accommodate the bearing buddy. Good luck on it!
Question: I have been using buddy bearing for years on my little 15’ boat trailer, recently I have has grease coming out of the bearing buddy, I installed a brand new one and still doing it. I am pumping grease in just as always til it comes out fill hole. Can’t figure out why I even cleaned it out and did a 20 mile test and yup bearing buddy throwing grease out. Help!!!
If you put too much grease in the hub when the bearings start to turn it displaces the grease builds up pressure in the hub and will push the bearing buddy out of the hub. Never could be seen again.
IMO it's better to take the time and hand-pack the bearings using water-resistant or water-proof grease. To easy to blow out inner seal using bearing buddies.
I still have the original bearings in my tandem boat trailer after 20 years because I have bearing buddies 👍
I watched this video and remembered I need to replace the bearings on my 4x8 harbor freight trailer......Do you know what bearings and seals I need to go get???
Never been a fan of hammering seals into place - too much error to having it cock. I always use a press whenever I can to get a perfect seat.
My 1991 ranger trailer has the ez lube spindles. I recently had my trailer worked on and the shop installed bearing buddies. is it ok to use these with ez lube axles instead of the traditional caps?
So, if the Bearing Buddy didn't get grease into the rear dry bearing initially, is it really doing anything for that rear bearing at other times? Thx
My trailer has grease Sirko on the end of the axels .