Bearing for servo steering motor - has concentric thrust rings and bearing races to support control sleeves between steering wheel and servo motor

摘要

The hydraulic servo steering motor has inner (12) and outer (11) control sleeves arranged concentrically with and operating between the steering wheel and the servo motor. The ends of the sleeves are supported on the servo housing by two concentric ball races (28, 29) and concentric thrust rings (33, 34). The bearings comprise simple ball races in cages. The servo motor accommodates large axial thrusts without affecting the servo control.