Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Tool Talk Discussion Forum

Sealed or shielded bearings?

Welcome Guest, Log in or Register
Author 
markiz41

06-18-2007 08:45:36




Report to Moderator

I need to rebuild an electric motor and was wondering if anyone had any experience with ball bearings. The old ones were shielded on one side and had grease fittings in the motor housing. I wonder if I should just replace them with new rubber sealed, permanently lubricated bearings but I worry about the life span of a rubber seal in a motor, even though it only going to be used indoors. Any advice?

[Log in to Reply]   [No Email]
Steve Crum

06-18-2007 09:32:22




Report to Moderator
 Re: Sealed or shielded bearings? in reply to markiz41, 06-18-2007 08:45:36  
The company that rebuilds virtually all the electric motors in this area went to using sealed bearings in all motors less than 50 horse about 25 years ago. This includes cheese plant operations and at the mill I work at now. I haven't noticed much differance in the life span of the bearings and these are wet and dry dusty conditions.



[Log in to Reply]  [No Email]
DeanO

06-18-2007 09:17:40




Report to Moderator
 Re: Sealed or shielded bearings? in reply to markiz41, 06-18-2007 08:45:36  
Just remember to pull the zerks and plug the holes so nobody greases your new sealed bearings.
Makes a heck of a mess in the end bell and windings.



[Log in to Reply]  [No Email]
markiz41

06-18-2007 10:06:52




Report to Moderator
 Re: Sealed or shielded bearings? in reply to DeanO, 06-18-2007 09:17:40  
Good point, Dean, thanks. And thanks, everyone for the advice. Any preference as far as brand name or will imported ones do? They are 6205 and 6206.



[Log in to Reply]  [No Email]
Butch(OH)

06-18-2007 11:56:02




Report to Moderator
 Re: Sealed or shielded bearings? in reply to markiz41, 06-18-2007 10:06:52  
I like the SKFs myself. As others said the rubber sealed bearings are OK in a motor just take out the fittings. For SKF bearings add 2RS to the bearing numbers you have and that gets you a rubber seal on each side or 1RS gets you one. If youi decide to go with shields then add Z for one or ZZ for two.



[Log in to Reply]  [No Email]
Mike M

06-18-2007 10:28:04




Report to Moderator
 Re: Sealed or shielded bearings? in reply to markiz41, 06-18-2007 10:06:52  
you can get them dirt cheap from an outfit I think called skatebearings.com



[Log in to Reply]  [No Email]
fzbcheve

06-18-2007 08:56:28




Report to Moderator
 Re: Sealed or shielded bearings? in reply to markiz41, 06-18-2007 08:45:36  
Go with the rubber sealed bearings, and you will never have to worry about them again. If you have a hard starting problem, then go with the steel shielded bearings. They have less drag, and start easier.



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy