Pinion ball bearings with preload adjustment for power rack and pinion steering gears

摘要

A rack and pinion power steering gear mechanism having a driving pinion connected to a driver controlled steering shaft through a torsion rod, a gear rack engageable with the pinion and connected to steering gear linkage members, a fluid motor having a movable piston connected to the rack, a steering valve comprising a valve sleeve connected to the pinion, an inner valve member in the sleeve connected to the steering shaft, and a pressure distributor fluid circuit connecting opposed side of the motor to the steering valve whereby pressure is distributed selectively to one side or the other of the piston to provide a power assist during steering maneuvers.