Unit comprising an encoder and an electric motor and method of assembly of such a unit

摘要

On the flange side of the electric motor (3) facing the timing disc (1), a centering collar (10) is located, with a flat (11) on one side. This reduces the insertion width across the collar, in comparison with its maximum width. The circuit board (5) includes a recess (12). This allows insertion of the collar, which is then interlocked and fixed into place. The side opening (13) of the recess is sized to allow free entry of the insertion width of the collar. An independent claim is included for the corresponding method of mounting the encoder.