The magneto bearing is a bearing which can be dismantled and which consists of a deep groove ball bearing inner ring and an outer ring with one shoulder only. The outer ring raceway in the groove base merges into a short cylindrical raceway without edges. The bearing rings can be installed separately which is the advantage of bearings being assembled in series.
The inner groove of magneto bearings are a little shallower than that of deep groove bearings. In general, two bearings are used as a pair. Magneto bearings are small bearings and are generally used for small magnetos, gyroscopes and instruments.