Hello -

I used a generic oil seal. I just typed the words "oil seal" with the dimensions into Ebay and found one easily enough. it's a lipped seal. So far it works well. I'll look through my notes and see if I can find a part number.

Best wishes,

Allan

email (option): allanmatchless@yahoo.com

SRM has a gearbox sprocket nut with oil seal for BSA . But not for our M20

John

email (option): john.kater@chello.nl

HI Allan

If you could that would be great
So far I have found a 0.87x1.31x0.21 code R21/SC from Simply Bearings
I was thinking of using 2 with a nylon spacer between them
Regards

Carl

email (option): carl.chezz@cwgsy.net