The gear set of the DYNAMIXEL MX-106. It is made of metal and has been specially coated to improve wear resistance and durability. The dedicated MX-106 magnet is connected to the gear set. Inclusive 2 Wheel bearings. The Dynamic transmission uses 2 ball bearings. When the product is released, the wheel bearings snap into place at the bottom. When changing a wheel, the remaining bearings must be installed on the top. The MX series dynamics have a non-contact position sensor that must be calibrated after the wheel has been changed. Use the supplied calibration adapter and the R + Dynamic Wizard for self calibration.This text is machine translated.