Mainshaft bearing small
BSA WM20, M20, M20WD, and M21 (1937 to 1947)
BSA M20, M21, B31, and B33 (1948 up)
BSA A7, A10 in plunger frame (bolt-on) & C11 4-speed
BSA A7, A10, B31 & B33 with STD gearbox
Ariel 1000cc (1946-59)
Royal Enfiled, Sunbeam S7/S8
Triumph 350cc twin,500/600cc pre unit
Triumph T120/T140 Unit twins
Triumph T150/T160
Villiers 9D 100/125cc Crankshaft bearing
Partnumbers: 24-4217, 89-3023, 60-3552 en 57-3621.
