Abstract: A bearing cartridge for a rotatable shaft of a wind turbine comprising a shaft and a back-to-back tapered roller bearing arrangement coupled to the shaft. The bearing arrangement comprising a first bearing having a first outer ring, a first inner ring and a plurality of tapered rollers; and a second bearing having a second outer ring, a second inner ring and a plurality of tapered rollers. The bearing cartridge further comprising a gear located on the shaft between the first bearing and second bearing and a sleeve for supporting an axial load between the first and second bearings and having one or more apertures that expose the gear for coupling to an external gear.

Abstract: A clutch release bearing and actuating mechanism, for a motor vehicle, comprises a clutch-disengaging device which is actuable, via a rolling-element thrust bearing, by a hydraulically actuated device. The hydraulically actuated device comprises a pair of stepped cylindrical members which define an annular chamber therebetween. The outer cylindrical member is slidable over the inner cylindrical member. The inner cylindrical member is fast to a housing member and the annular chamber is connectible to a supply of hydraulic fluid. The inner ring of the thrust bearing is fast to the outer cylindrical member and the outer ring of the bearing is flexibly coupled to the clutch-disengaging device.

Abstract: A hydraulically operated clutch mechanism for connecting a drive shaft and a driven shaft includes a clutch normally effecting driving connection between the shafts. Hydraulically actuable means are provided for disengaging the drive connection and brake means are provided for braking the driven shaft, a mechanical linkage being provided between the hydraulically actuable means and the brake means. Actuation of the hydraulically actuable means first disengages the drive connection and then causes braking of the driven shaft. The mechanical linkage incorporates compensation means for compensating automatically for any wear of the clutch.