Bosch Gen 3 Bearing Identifier

If you are replacing the bearings yourself, you can identify which bearing goes where and individually purchase just the ones you need!

These are all the common bearings in the Bosch ebike Generation 3 Active Line, Active Line Plus and Performance Line motors.

Bosch Generation 3 (BDU3xx) motor (NOTE: Large chainring)

Quicks Links to other Guides

Bosch Gen 2 – Bearing Identifier
Bosch Gen 3 – Bearing Identifier
Bosch Gen 4 – Bearing Identifier
Brose ‘S’ & ‘T’ – Bearing Identifier
Brose ‘S’ MAG – Bearing Identifier
Impulse 2.0 – Bearing Identifier
Panasonic ebike – Bearing Identifier
Yamaha ebike – Bearing Identifier