The optimal design the engagement in various spur gears Gear drive unit of RC car will be a good bite together is very important the efficiency of the gear to each other there are a variety of combinations, such as by a gear ratio change. PR pinion gear has designed the ideal tooth profile to simulate any combination with a wide a spur gear. Optimize the tooth bearing for spur gear to convey reliably driving force Excellent rigidity design that places the axis to the center The pinion shaft stiffness to support the gear will greatly affect gear performance. PR pinion gear is designed to tooth axis is in the middle the gear, then transfer the torque from the motor efficiently to the spur gear. And I also suppressed the runout at the time of rotation and long-span of the pinion gear fixed axis of the center. Symmetrical design to suppress the realization to runout the high axial stiffness. Tooth axis shape of 22T ~ 33T will be offset shape
