The MG223T/0.5M pinion is a 23-tooth motor gear sized for a 0.5mm module and a 2.2mm motor tooth diameter, made from 40Cr steel to provide durable tooth surfaces. The pinion fits motors with a round motor hole and is secured using two 3x3 set screws to maintain axial position.
Installation: check shaft diameter and module compatibility before installation, fit the pinion so teeth mesh evenly with the spur gear, then tighten the two 3x3 set screws evenly. Perform a low-speed check to confirm correct mesh and no binding.
Performance note: as a like-for-like replacement, this pinion helps restore accurate gear mesh and resists accelerated wear compared with worn components. Confirm gear ratios and compatibility with your motor and spur gear before sustained use.