Gear 63 teeth with bushing M4

The bushing is snug and spins freely on the M4 shaft, which made assembly much smoother than with other gears I've tried. Exactly what my model needed to keep the timing right.

This 63-tooth gear meshes perfectly with the bushing, making my mechanical assembly much smoother than with the old part. The fit is precise and I didn't have to do any filing.

The brass bushing on this gear fits snugly onto the M4 shaft, with no wobble at all during assembly. I've used it to replace a worn-out part in my project, and the teeth engage smoothly with the other gears. Definitely a solid, precise piece for model building.