Author Topic: gearbox bearings  (Read 314 times)

Offline route 66

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gearbox bearings
« on: 12.05. 2023 11:18 »
If you were overhauling a gearbox,would there be any benefit in fitting needle rollers as per RR T 2 instead of reaming bushes?
61 GF 58 SR

Online chaterlea25

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Re: gearbox bearings
« Reply #1 on: 12.05. 2023 12:24 »
Hi R66,
It is not a straight forward swop *ex*
You will find inevitably a worn layshaft so
You would need a new one,
I think the T type is different?? Also needed are the steel thrust washers that replace the bush flanges
The T type mainshaft and high speed gear are also different

John
1961 Super Rocket
1963 RGS (ongoing)

Offline RDfella

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Re: gearbox bearings
« Reply #2 on: 12.05. 2023 14:11 »
Quote
If you were overhauling a gearbox,would there be any benefit in fitting needle rollers as per RR T 2 instead of reaming bushes?

In a word - no (unless it's going to do some serious racing - even then it's debatable).
'49 B31, '49 M21, '53 DOT, '58 Flash, '62 Flash special, '00 Firestorm, Weslake sprint bike.