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Thread: MAZDA factory part # for pinion bearings?
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Brad
Rotorhead
Posts: 1672
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posted December 16, 2010 03:58 PM |
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MAZDA factory part # for pinion bearings?
Anyone have the part # for the MAZDA factory pinion bearings?
The Timken aftermarket inner I bought is too wide.
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-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge
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spokanerxdude
Hauling
Less cubes... More balls
Posts: 181
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posted December 17, 2010 04:01 AM |
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They should be able to cross referance the number on the old bearing, try that if you haven't already.
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Allen Ervin, spokanerxdude@yahoo.com
509-998-9024
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Brad
Rotorhead
Posts: 1672
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posted December 17, 2010 06:55 PM |
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I tried to do that myself online and after hours of searching have come up with the conclusions:
1. There are way too many Chinese bearing manufacturers. And their reputation is sketchy at best. Their websites look like shit, are organized like shit, and are worthless. What makes them think I'm going to fill out a form for "Vicky" in Bejing to get back to me?
2. Not nearly enough cross reference docs online
3. The few cross reference docs I can find very rarely have KOYO brand
4. Cross reference docs take liberty using or rearranging the dashes in KOYO part numbers
5. Through hours of deductive work that ate into my work time I think the REPU REAR rear pinion bearing is the same used on all FC rear pinions, the 1.8L Miata rear pinion, and the 86 B2000 rear pinion.
6. I think TIMKEN has the wrong part # listed for REPU rear pinion as National lists a totally different width bearing. Like .4" off
7. I'll find out next week when my new KOYO bearing arrives
8. TIMKEN and rockauto.com say REPU uses a retaining *collar* to hold the axle bearing on. When the shop manual and my eyes say it's a retaining *threaded nut*. So their info can be suspect.
9. I just ordered a 6 cheese and double bacon pizza and can't wait for it to arrive.
Brad
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Brad
Rotorhead
Posts: 1672
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posted December 22, 2010 01:06 PM |
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REPU inner pinion bearing is the same as all 2nd gen rx7's if that helps anyone else.
The part number on bearing Mazda shipped me is HR 32307C and is made by NSK Bearing. The number 32307 is the correct bearing number that can be cross referenced to any bearing manuafacturer. TIMKEN has the wrong part# listed.
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spokanerxdude
Hauling
Less cubes... More balls
Posts: 181
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posted December 23, 2010 04:31 AM |
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Great Job Brad thanks for all your work. I'm going to be going through one of mine this spring.
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Allen Ervin, spokanerxdude@yahoo.com
509-998-9024
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MAZDAMARK
Hauling
Posts: 139
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posted January 11, 2011 08:26 AM |
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For FC pinion bearing, are you talking Turbo diff or non-turbo diff?
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94 RX7
89 RX7 GTUs
85 GSLSE
88 323 GTX
1975 REPU
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Brad
Rotorhead
Posts: 1672
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posted January 12, 2011 04:37 PM |
 Edited By: Brad on 12 Jan 2011 16:39 |
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