 Rotors and bearings, How to press in the races? |
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| Jaiden |
 Mar 14 2006, 07:33 PM
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#1
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Member  Group: Members Posts: 346 Joined: 13-January 05 From: Stroudsburg PA Member No.: 3,443  |
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| Jaiden |
Mar 14 2006, 07:34 PM
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#2
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Member Group: Members Posts: 346 Joined: 13-January 05 From: Stroudsburg PA Member No.: 3,443 |
Bearing Race:
(IMG:http://www.914world.com/bbs2/uploads/blog-1142386120.jpg) |
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| Jaiden |
Mar 14 2006, 07:35 PM
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#3
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Member Group: Members Posts: 346 Joined: 13-January 05 From: Stroudsburg PA Member No.: 3,443 |
Sorry for the large pics
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| Dr. Roger |
Mar 14 2006, 07:40 PM
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#4
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A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
very carefully. =-)
i use a little brass hammer and work my way around the race one rap at a time. also i taper the hub ever so slightyly with a fine file to allow the race to enter the hub a little more easily. make sure everything is squeaky clean. put the race in the freezer for 30 minutes beforehand. |
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| Mueller |
Mar 14 2006, 07:42 PM
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#5
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None 
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do you have access to a bench grinder?
if so, grind down the OD of your old races and use those to help press in the new ones....also, the largest diameter socket you have helps as well... freezing the new race and heating up the hub works as well |
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| Jaiden |
Mar 14 2006, 07:43 PM
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#6
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Member Group: Members Posts: 346 Joined: 13-January 05 From: Stroudsburg PA Member No.: 3,443 |
So it's a light press fit I guess. I just want to do it right the first time.
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| Aaron Cox |
Mar 14 2006, 07:45 PM
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#7
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
tap em in is the easy way.... i put my rotors in the sun... and the bearings in the freezer..... drops almost all the way in.... |
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| wilchek |
Mar 14 2006, 07:58 PM
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#8
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Senior Member Group: Members Posts: 506 Joined: 8-June 04 From: Eastern Pennsylvania Member No.: 2,177 |
It is tight. don't fool yourself you will need a hammer if u don't have a press. Use the old race and grind down the outside. flip it over so you have more to wack and don't stop until it is seated. If you don't have a grinder use a large socket. I froze my race and it still needed some hammer blows to get it in. Good luck.
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| lapuwali |
Mar 14 2006, 07:59 PM
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#9
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743  |
Yup. Put the races in the freezer the night before, and tap them in gently using the old race between the hammer and the race. I try to not take the race out of the freezer until just before I'm going to put them in. I've never been lucky enough to have them drop in, but I've also never tried heating the hub.
Also, clean, clean, clean. Get all the old grease out, and don't pile in a ton more. Roller bearings don't need much lubrication, so just pack some into the cage and leave it at that. I've pulled apart hubs that literally had over a pound of grease shoved into them, to no good end. Also fit new seals, and lightly grease the lip of the seal... |
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