Pololu Wheel 42x19mm Pair
 

This rugged wheel is designed to fit securely on the output shafts of our micro and 15.5D metal gearmotors.
These gearmotors should be mounted onto the side of the hub with the protruding teeth, as shown on the right.
The output shaft will slide into the socket easily at first but will achieve a snug fit when pressed through to the other edge of the hub.

The output shafts on the Solarbotics metal gear motors will also fit these wheels,
but because they are shorter they will have to be mounted onto the other side of the wheel where the fit is tighter
(which means the Solarbotics metal gearmotors will not work with the quadrature encoder associated with this wheel).
These wheels will also work in this orientation on theorientation on the
Pololu plastic gearmotors with 3mm D-shaft outputs.

Our extended micro metal gearmotor bracket is specifically designed to work with this wheel.
Please note that the non-extended version of our mounting bracket
(product #989) will not work well with this wheel.
 

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