Abstract: A lubricating system for bearing shoes supporting a drum of a crusher for rotation and defining a lubricating oil basin between an upstream and downstream end, in the direction of rotation, comprises a low pressure oil pump operable to deliver lubricating oil to the upstream end of the bearing shoes during rotation of the drum, a high pressure pump operable to deliver lubricating oil to the basin at the start of rotation, and thermocouples arranged to measure the temperature of the bearing shoes close to their gliding surfaces, the thermocouples controlling the high pressure pump operation in response to a temperature sensed by the thermocouples and exceeding a set value.

Abstract: A thrust bearing comprises a support and a stationary stand, the support being mounted on the stand for pivoting about an axis extending radially with respect to a cylinder rotating about an axis and comprising a ring and bearings supporting the ring for rotation of the cylinder. The ring has two plane faces, one face on each side of the pivoting axis of the support, and bearings are mounted on the pivotal support in a gliding relationship along at least one of the plane faces of the ring.

Abstract: The rotary tube of a crusher is mounted for rotation on a support having a support surface in gliding contact with a circumferentially extending, circular face portion of the crusher tube. The support is supported on a ball-and-socket joint in turn supported on a base, the ball of the joint being affixed to the support and the socket being affixed to the base. A cheek plate extends from each side of the support and encloses the joint and a portion of the base so as to restrain lateral movement of the support.