Centring device, especially for steering valves, has centring part with groove held by needle bearing between driven shaft and torque rod; bearing has elastic roller track bulge and groove

摘要

The centring device has an elastic torque rod (1) with end sections connected to drive (5) and driven (7) shafts and with the driven shaft connected to a steering valve bush, which has an adjustable rotary sliding element (10) so that pressurised oil is fed to a servo element if the drive shaft moves wrt. the driven shaft. A centring part (6) held by a needle bearing (13) is arranged between the driven shaft and the torque rod. The needle bearing has an outer ring in the form of a thin-walled casing with an elastic roller track bulge and a groove with a counterpart in the centring part.