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Re: Diff Identification
Posted: Tue Sep 17, 2019 3:37 pm
by ndevans
I have one available, I'll measure it tonight.
Re: Diff Identification
Posted: Tue Sep 17, 2019 3:45 pm
by Banned User
Thanks.
Re: Diff Identification
Posted: Tue Sep 17, 2019 10:36 pm
by ndevans
Ok, the outer race is 72mm, and the inner race is 34.8mm, but it's not easy to measure the inner race, as it's still on the cage! This is the cage bearing, not the pinion bearing. The bearing is 17mm thick.
Re: Diff Identification
Posted: Wed Sep 18, 2019 6:41 am
by Banned User
Thanks very much.
Re: Diff Identification
Posted: Wed Sep 18, 2019 8:35 am
by Declan_Burns
N,
It is not 34.8, it is 35mm. It is a metric angular contact bearing. I use SKF 7207B 35x72x17mm with a metal cage-not polyamide!. Original bearings may have been R&M 19LJ35. 35mm Shims are readily available (Google DIN 988).
Regards
Declan
Re: Diff Identification
Posted: Wed Sep 18, 2019 8:43 am
by Banned User
Without having a bearing to hand, it looks
Iike a 72mm x 62mm x 0.00**mm shim would fit. It certainly doesn’t look like I need to go outside the UK to source them.

- ED155CF0-06F7-4FB6-A210-1CA30378AAFC.jpeg (688.29 KiB) Viewed 1504 times
Re: Diff Identification
Posted: Wed Sep 18, 2019 9:30 am
by Declan_Burns
A 72x56 x"X"mm is a standard size not a 72x60mm.
I buy them here:
https://www.agrolager.de/product_info.p ... d=40001692
Regards
Declan
Re: Diff Identification
Posted: Wed Sep 18, 2019 9:38 am
by Banned User
Declan, have you used those for this purpose?
Re: Diff Identification
Posted: Wed Sep 18, 2019 10:02 am
by ndevans
Declan_Burns wrote: ↑Wed Sep 18, 2019 8:35 am
N,
It is not 34.8, it is 35mm. It is a metric angular contact bearing. I use SKF 7207B 35x72x17mm with a metal cage-not polyamide!. Original bearings may have been R&M 19LJ35. 35mm Shims are readily available (Google DIN 988).
Regards
Declan
I thought it might be 35mm, but my bearing is still mounted in the cage with the pinion in it, so it's not easy to get an accurate measurement.
Odd that on a car with almost everything else in Imperial measurements, the bearings should be metric!
Re: Diff Identification
Posted: Wed Sep 18, 2019 11:03 am
by Declan_Burns
PoolGuy wrote: ↑Wed Sep 18, 2019 9:38 am
Declan, have you used those for this purpose?
Yes,
I have installed them on an MG TD ring gear and pinion conversion that I am currently doing. The same bearing is used.
Regards
Declan
Re: Diff Identification
Posted: Wed Sep 18, 2019 11:14 am
by Banned User
Thanks Declan.