Abstract: A torque limiting coupling rotatably arranged around a longitudinal axis A has a coupling hub (2, 102, 202), drivers (6, 106), a coupling sleeve (3, 103, 203) and a switching disk (4, 104, 204). The switching disk (4, 104, 204) is rotatably arranged between a switched-on position and an idling position relative to the coupling hub (2, 102, 202). The drivers (6, 106) engage the coupling sleeve first recesses (7, 107,207) in the switched-on position. The drivers (6, 106) engage the switching disk second recesses (8, 108, 208) in the idling position. A first spring mechanism (25, 125, 225) urges the switching disk (4, 104, 204) in the direction towards the switched-on position. A second spring mechanism (12, 112, 212) acts axially on the switching disk (4, 104, 204) and urges the drivers (6, 106) against the coupling sleeve (3, 103, 203).

Abstract: A central lubrication system for lubricating a telescopic shaft (1, 101, 201) has a lubrication device (10, 110, 210) and an inner profiled tube (2, 102, 202) of the telescopic shaft (1, 101, 201). The lubrication device (10, 110, 210) is insertable into the inner profiled tube. At least one feed duct (11, 111, 211) feeds lubricant to the portions of the telescopic shaft (1, 101, 201) to be lubricated.

Abstract: A torque limiting coupling rotatably arranged around a longitudinal axis A has a coupling hub (2, 102, 202), drivers (6, 106), a coupling sleeve (3, 103, 203) and a switching disk (4, 104, 204). The switching disk (4, 104, 204) is rotatably arranged between a switched-on position and an idling position relative to the coupling hub (2, 102, 202). The drivers (6, 106) engage the coupling sleeve first recesses (7, 107,207) in the switched-on position. The drivers (6, 106) engage the switching disk second recesses (8, 108, 208) in the idling position. A first spring mechanism (25, 125, 225) urges the switching disk (4, 104, 204) in the direction towards the switched-on position. A second spring mechanism (12, 112, 212) acts axially on the switching disk (4, 104, 204) and urges the drivers (6, 106) against the coupling sleeve (3, 103, 203).

Abstract: A torque limiting coupling has a first coupling hub (2) with first driving members (10), and a second coupling hub (27) with second driving members (35). The hubs (2, 27) are jointly received in a coupling sleeve (46) and are rotatable independently of one another. When a set torque is exceeded while the first coupling hub (2) is driven in one of two driving directions of rotation N1 or N2, the second coupling hub (27) is subjected to a force which ensures that, in the driving direction of rotation N1, the driving members (10) of the first coupling hub (2) are transferred into the disconnected position and that, in the driving direction of rotation N2, the second driving members (35) of the second coupling hub (27) are transferred into the disconnected position.

Abstract: A torque limiting coupling has a first coupling hub (2) with first driving members (10), and a second coupling hub (27) with second driving members (35). The hubs (2, 27) are jointly received in a coupling sleeve (46) and are rotatable independently of one another. When a set torque is exceeded while the first coupling hub (2) is driven in one of two driving directions of rotation N1 or N2, the second coupling hub (27) is subjected to a force which ensures that, in the driving direction of rotation N1, the driving members (10) of the first coupling hub (2) are transferred into the disconnected position and that, in the driving direction of rotation N2, the second driving members (35) of the second coupling hub (27) are transferred into the disconnected position.