LEGO Technic Liftarm 5 x 7 Open Center For Ball Bearings

LEGO Technic Liftarm 5 x 7 Open Center For Ball Bearings

grabcad

This model is a LEGO Technic part (64179) that I use frequently for differentials. I modified this brick to be able to hold ball bearings to make the car go much faster by reducing friction.

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