Actually its the other one (in the inner cover). BSA part 24-4217.

email (option): cas.vanderwoude@gmail.com

24-4217 is a RLS6

Thanks Ian!

email (option): cas.vanderwoude@gmail.com

If it's the RLS6. It can also be known as an LJ3/4 and can be supplied in a sealed version ( 2rs )
Any standard bearing stockist should keep them but if you struggle, drop me a line and I will arrange to post one for you.
Regards
Darren

email (option): dwrudd At lineone dot net

does the RLS6 need to be the sealed type ?

No! There is no point as it's contained within the gearbox. Ron

email (option): ronpier@talk21.com