Self Lubricating Plastic Transmission Ptfe Rack 

Self Lubricating Plastic Transmission Ptfe Rack Gear Rack Products Parameters The gear drives the rack to a certain position and then stops. The  gear still rotates, but the rack no longer moves. When the gear  reverses, it can bring the rack back. The rear flywheel of an automatic car is not a ratchet, but a steel  ball type one-way (commonly known as a one-way bearing, also  called a ball-and-roll overrunning clutch). When the chain is forward,  the flywheel will carry the tire forward, and when the chain is  backward, the flywheel will follow. But will not drive the tires.  The steel ball unidirectional is a special structure (plane or spiral or  eccentric) in which the balls and the inner and outer raceways form a  friction pair to transmit power. When rotating in a single direction, the  balls are processed on the inner raceway (or outer raceway). In the  tight state,…