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C & M Precision Spindle
United States
เข้าร่วมเมื่อ 10 พ.ค. 2017
The C & M Precision Spindle TH-cam features how-tos, info, and tips & tricks on machine spindle repair, rebuiild, and usage.
Our goal is to help our viewers and community maintain the accuracy and life of their spindles for as long as possible.
Since 1993, C & M Precision Spindle has provided spindle repair and rebuild services to machine tool owners in Oregon, Washington, and the Greater Northwest, as well as across the United States, Canada, and Mexico.
Our goal is to help our viewers and community maintain the accuracy and life of their spindles for as long as possible.
Since 1993, C & M Precision Spindle has provided spindle repair and rebuild services to machine tool owners in Oregon, Washington, and the Greater Northwest, as well as across the United States, Canada, and Mexico.
Dialing in the Back of a Spindle Shaft
See how to dial in the back of a spindle shaft using a spring punch in order to stop unacceptable run-out.
Bill Murphy of C & M Precision Spindle goes over a less common but helpful process of dialing in the back of a precision spindle, in this case a Matsuura 20,000 RPM. He uses a spring punch to take stress out in the nut (here a KTM-12). Stress can build up in nuts on the threads since they are helical planes.
Tools used in the video:
- Noxon Spring Tools 5 Piece Master Mechanic Set (springtools.com/products/50x08-5-piece-master-mechanics-set)
Bill Murphy of C & M Precision Spindle goes over a less common but helpful process of dialing in the back of a precision spindle, in this case a Matsuura 20,000 RPM. He uses a spring punch to take stress out in the nut (here a KTM-12). Stress can build up in nuts on the threads since they are helical planes.
Tools used in the video:
- Noxon Spring Tools 5 Piece Master Mechanic Set (springtools.com/products/50x08-5-piece-master-mechanics-set)
มุมมอง: 1 347
วีดีโอ
Quick Tip: Inspecting a Spindle
มุมมอง 552ปีที่แล้ว
This video gives a few tips when inspecting your spindle for things like run out. Bill Murphy, CEO and Lead Spindle Technician at C & M Precision Spindle, goes through tips such as where to put your indicator on the quill housing, a reminder to check radial movement and axial movement, and a helpful standard for all your measurements: two-tenths of a thousandth. If you'd like to see more videos...
Quick Tip: How to Take Out a Precision Spindle
มุมมอง 752ปีที่แล้ว
If you need to take your spindle out of its quill housing, whether to send it in to C & M Precision Spindle for repair or for another reason, this short video goes over the basics. Bill Murphy, Lead Spindle Technician and CEO of C & M Precision Spindle, provides helpful tips on taking out the set screw, working with the down feed, and how not to damage your spindle when you take it out. If we g...
Why do I want a 5-Pack Spindle and not a 3-Pack?
มุมมอง 4Kปีที่แล้ว
Watch an explanation of the Browning 5-Pack & 6-Pack Upgrades for a knee mill Bridgeport spindle, including how they compare to the standard 3-Pack (3 bearing) design. Bill Murphy of C & M Precision Spindle illustrates the key differences between each upgrade, including who should consider the upgrade, when it's the optimal time to get the upgrade, and why someone would prefer one upgrade over ...
How to Disassemble a Bridgeport Spindle
มุมมอง 14Kปีที่แล้ว
Watch a step-by-step breakdown of the disassembly of a Bridgeport spindle, from the removal of the nose cap to replacing the bearings. Bill Murphy of C & M Precision Spindle uses jouncing to take the spindle apart but has suggestions for other methods throughout the demonstration. Also included in the video are some helpful tips on re-inserting a set screw, matching bearings, and determining th...
Great stuff, would love to ship you a pair for re-fit. Do you grind collets as well? Would be nice to have a matched set. If not, what's your best recommendation for R8 collet brands? Subscribed!!
Sorry I haven't needed new collets for 25 years. We do bigger spindles most of the time. CNC grinders, lathes, mills and fill in with the knee mills for my entertainment. Once you try a 5-Pack you will believe. So much better.
I did it 4 bearings to my Bridgeport it works amazing and better finish now i can make really heavy cutting
👍
Hello. My Bridgeport clone (Comet) is in dire need of your services, ... do you do work on spindles shipped from Canada? Thanks for your videos.
Sure. It is easier for you to go over the border and ship from a US UPS office than all the paper work then have me ship back to them. Be sure to leave sub assembly together and send the nose cap. Wooden box wrapped in cardboard will be the least expensive. Cheers, Bill Murphy
@@cmprecisionspindle Thank you for your reply and shipping suggestion. Will follow up after a little more research .
Boa Noite sou do Brasil tenho fresadora Bridgeport troquei a correria e agora não estou conseguindo regular o RPM pode me ajudar
SpankRanch Garage on TH-cam, You will have to take head apart and rebuild. Sorry. They need rebuild every so often. I limit myself to spindles but I found that video in seconds looking under "Bridgeport mill head problems". It would great if you put your rebuild journey on TH-cam for the next guy in Brazil if possible.
This was a very informative video. Thanks for sharing your knowledge with us.
Glad it was helpful!
Thank you for the information and demonstration.
Our pleasure!
What is the price for the 5 pack and regrind the items you mentioned if I supply my bpt spindle.
$650., for bearings, R-8 grind. Be sure to send the Nose cap and the sub-assembly still together. UPS is still the cheapest, jut make sure it is in a wood box so it can take a UPS drop. Cheers, Bill
amazing! never thought there could be stress in the nut!!! what a great tip!
Glad it was helpful!
saw this spindle shaft (bridgeport) for 150 bucks on aliexpress
Can you share the link? Much appreciated!
Why don’t you just blue loctite the nose piece in and forget about the little grub set screw?
I've seen it fail too much. If you use all the steps to Loctite it is great but no one does.
Can you post the bearing 5 pack to Australia?
Never had a request for it. UPS covers the globe though.
Awesome info and video! Thank you very much. I have always wondered how much wear accumulates on the spindle splines and how that affects the noise and performance. I've rebuilt a couple of Bridgeport Vari-Speed heads, and I always replace the Spindle Hub. Do you see worn splines in your work and what are your thoughts on this? Thanks again!
Depends on how they are used. We always see massive wear on the Hurcos. Especially in the center. How much torque and load is applied for how long. Some just need a new shaft others can be welded up but very rare and cheaper to buy a new one. Shafts have gotten way to pricey lately and the quality is softer. That center hole is a stopper for most shops to make unless they have a gundrill. Cheers
Do you offer this upgrade for a Clausing Kondia FV1 (non cnc)?
Yes that should work for a Kondia. 3 3/8" Quills. I had one shop send in 5 Kondias years ago and they were NEW. Nothing wrong but he had one Bridgeport done and his machinists were fighting over who got to use the worn Bridgeport vs the new Kondias! the spindle upgrade was the only difference. It was worth it to him for peace. Cheers, Bill
Good information, thank you. I suspect because you're in the spindle "business" it seems like "nothing" to throw on another pair of bearings . In my world some of those bearing pairs run in the $300 - $500 range!. If Robin Renzetti [sp?] rebuilds his high precision spindles with "just" three bearings , that will be good enough for me!
You are welcome. I'm sure Robin does excellent work. Cheers, Bill
You're really sucking on his teat pretty hard aren't you. I bet if he jumped off a bridge, you would say "how high". More bearing doesn't equal more precision, it equals more rigidity.
Hey Bill awesome video!!!
Thanks a ton, David! I appreciate it!
Hi Bill, I love the 5-Pack( and the outstanding R8 taper re-grind ) you put in my Lagun FTV-1 spindle! Fast turn around and excellent performance!
Thank you so much, Jeff! Glad the 5-Pack is working out. You're the reason why we do this (:
Tee shirt - Get yourself a 5 pack, a six pack might put you over the Limit! If you’re old enough to use, and need a Machinery Handbook Large print edition , you should be Wise enough to get yourself a 5 pack ! A few will need a 6 pack! Wether a 50 caliber M-2 or a 5 pack, get yourself a Browning!
More great swag ideas! (:
More balls equals stiffer shafts? Tee shirt or bumper sticker?
Haha. Yes, maybe we should set up an online swag store (:
This is a very good explanation!
Thank you!
Great video - you have obviously done this many time before!
Much appreciated!