30x42x7 mm The most common use for this bearing is as a direct replacement bearing for BB30 and PF30 type BBs (including BB386).

28x42x7/8 mm The most common use for this bearing is as a direct replacement bearing for the non-drive side beaing on Praxis M30 cranksets.

30x42x7 mm The most common use for this bearing is as a direct replacement bearing for BB30, PF30 and BB386 and most other bottom brackets with a 30mm OD spindle.