Wood Thrust Flat Bearing - Marbles & Ball Bearings
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- เผยแพร่เมื่อ 15 ก.ย. 2012
- I wanted to make a flat thrust bearing (similar to a lazy susan) using marbles. I experimented with 9/16" diameter glass marbles, 5/8" ball bearings and a method to make them run evenly in the tack.
Check this out by pocket83 who spent a lot more time making a similar bearing than I did. • Making a wooden bearin... - แนวปฏิบัติและการใช้ชีวิต
Although this might be for your build, the video delivers an amazing breakdown of some fundamentals for thrust bearings. Got my like!
Glad you liked it! Thanks for watching. Please subscribe! Ron
This answered some questions I didn't know I had about an entirely different bearing.
The drag is only on the front edge of the bearing where it is pushing against the cage. Using a spacer, far fewer bearings are required around the track. Fewer bearings equates to less drag. Metal bearings use cages/spacers for the same purpose.
The German Scientist Roentgen who was given credit for discovering X-ray's in 1895 was very disturbed by a piece of mail he received unannounced from Nikola Tesla. Tesla had previously created Xray's prior to Mr. Roentgen's announcement. Separated by an ocean, and the lack of the internet, telephone&radio, one is left to concede that there must be more than one brain playing with the same idea at the same time. I enjoy both of your channels.
Ronald that is fantastic mate thanks for sharing.
Thanks for explaining the reason why the race is used. Cheers.
Thanks so much Ron.
Very talented I thought of marbles too but don't know how to cut things like you do,Great job and design.
Thanks so much 😊
Fascinating!
I wonder what creative idea you have for this contraption?
I have built a bearing for a device that is like a small lazy susan. When I tried to make the groove/race all the way around the circumference, it did like yours. It rolled smooth, but it stopped as soon as you let go. With a small bearing near the axle, it spins for something on the order of a minute. Of course this is no good for a lazy susan, and you can buy small thrust bearings rather cheap so there's no need to make your own. In my app, I didn't need to make it donut shaped, nor did I need to worry about asymmetrical load. And I needed it to make at least a complete revolution with just a flick of a finger. So I went with the tiny bearing and a tiny 1 mil gap around the outer edge of the discs to prevent the turntable from tipping. Anyways, I thought this was interesting. More bearings = more mass, and you might think the larger bearing would carry a bit of inertia to offset a bit of the friction. But the balls must also travel much faster/farther for a given speed/rotation of the "lazy susan" as the bearing gets larger... which makes the loss from friction increase exponentially, or something like that. More balls moving faster/farther and all rubbing on race/cage. This is probably covered in mechanical engineering 101, but I learned it the hard way, lol. So from my perspective, your bearing works pretty great for its size.
How much would you guess is the friction between the steel bearings and the spacer plate? There would always be some drag there but less than the balls rubbing each other. Fascinating to watch.
The way a bearing works is no secret. Neither is the need to keep balls or rollers from running into each other. If you are making a wood bearing, what else would you space them with? I use what is in my shop. Apology accepted.
What a great video! Thanks for sharing 👍
Glad you enjoyed it!
Thanks for watching. Please subscribe.
That's what keeps this channel going!
Ron
true, but do you think that they would end up slowly grinding away as time/friction goes on ? or is the material they are made of strong enough ?
So, now that you have planted the idea in our minds that we Must have one of these.. where do we get individual ball bearings to use?
I used golfballs in mine ball thrust in this rotating wood splitting block.
Less noise I think.
Great job 👽👍
Gravity causes the cardboard raceway to touch the wood at all times. Is there to make the balls be separated without a raceway?
Thanks Ronald i like Your channel.
Thank You! And thanks for subscribing. Ron
I watched a couple of your videos and they certainly appear to be well done. "Nice" would be a request. It's the "fair" part that bothers me a bit, or the implication. I made my bearing from scratch to suit my project, just like it appears you did with your lazy susan. I used my knowledge of how a bearing works and applied it to my needs. Then I improved it by not using marbles. Until today I have never heard of your channel. Good luck with your views.
A lazy susan, large turntable for a large potted plant (lazy susan) or a marble machine...
Thanks for this!!
Where'd u get the ball bearings? :) I LOVE MY BALL BEARINGS!!!! :)
+DJ EZE eBay - 5/8 inch utility grade carbon steel bearing balls
nice build. i may be copying this for some stupidity i have planned.
Excellent !
Remember to video it.
I am making some stupidity too. I used 4 skateboard bearings embedded into the base, and another in the center of the turntable, and a dowel rod protruding from the base that the turntable sets on. Sorry, I did not mean to get graphic.
Thank you. Who knew marbles could be so far off?
Si todo el elemento se encuentra en posición vertical tambien funciona?
TH-cam mixes up the questions and answers and I do not know if I responded to this or not. Sometimes I never see some of the comments. This bearing was designed to work horizontal. There is nothing to hold the two halves together so I do not expect it to work vertically (upright). Thank you for watching! Please subscribe. Ron
Do you have a video for making the wood part?
I do not have a video on actually routing the track.
In the video: Wood Thrust Flat Bearing - Marbles & Ball Bearings
Around 0:53 you can see the lower race sitting on the router jig used to cut the bearing track.
The following is a similar router jig I made recently.
You won't be able to play this until after Dec 25th because it is currently scheduled on TH-cam.
Router Circle Jig - Bamboo Pivot Pin
th-cam.com/video/ybel-A265Zc/w-d-xo.html
And the following applies to how the segmented piece of wood was made.
Segmented wheels or gears (blanks) with only radial grain can split due to climatic changes and natural wood movement.
Using C&R grain orientation is more difficult but produces a very stable wheel or gear.
Plywood is always the most stable but not as attractive.
The following playlist groups videos which cover a lot of this information:
th-cam.com/play/PL0088F06A4155483F.html&si=UUKwt8xeE_RLEb9V
Thanks for watching. Please subscribe!
That is what keeps this channel running.
Ron
sorry,what do you use it for?
Lazy Susan type large turntable.
I have round glass can you think of a way to make a lazy Susan?
This is the same way I would make a lazy Susan... marbles or bearings separated by a cage. Only problem would be it coming apart if you were not careful whenever moving it. If all you want to do is make your own lazy Susan, search eBay for "Lazy Susan Bearing" and you will find many different sizes and options. Thanks for watching.
La solucion a mis problemas
Whoa
nice
'
wow that good...
i use plastic balls on the metal plate that easily turnning spin so smoothly...
no no need greasey
Interesting.
thumbs up
It can be better if a little amount of lubricant is applied to bearings. Less noise! Kitchen soap, vegetable oil, wood wax, ...
No, I do not. I am just showing you how you could make one yourself.
It's basically a Torrington bearing
Except Torrington "Thrust" Bearings, as I know them, have roller bearings.
I'd go for metal, and grease the hell out of them, that often keeps the rattling down =P
I would ask you to reverse our positions momentarily, and consider the evidence. I am expected to accept from one of two possibilities: either an incredible coincidence has occurred, or as I have offered in my previous "implication," there is a simple explanation.
If the former is the case, then I offer my most sincere apologies. If the other, then I would appreciate nothing more than an acknowledgement.
By the way, now that I am sure that I have your attention... I love your work.
eBay
Or so you think..
RonaldWalters47:
Please consider that by the end of the week, this video will have more views than my entire channel. It would be not only fair, but nice of you to plug my wooden bearing videos somewhere.
Hmmm
To the comment reader: I am now (after exchanging emails) satisfied that we have both developed a very similar bearing building technique independently, and I am not accusing Mr. Walters of idea theft in any way. Oh, and the Romans actually invented the wooden bearing, not either of us- but they didn't use marbles.
I came looking for a wooden bearing..
-The End.