A lubricant supported electric motor includes a stator presenting an outer raceway and a rotor extending along an axis and rotatably disposed within the stator to present an inner raceway disposed in spaced relationship with said the raceway to define a gap therebetween. A lubricant is disposed in the gap for supporting the rotor within the stator. At least one of the outer raceway or the inner raceway are profiled with a non-circular, cross-sectional shape for maintaining consistent support of the rotor over a wide range of operating speeds and dynamic situations encountered by the lubricant supported electric motor during operation.

A lubricant supported electric motor includes a stator presenting an outer raceway and a rotor extending along an axis and rotatably disposed within the stator to present an inner raceway disposed in spaced relationship with said the raceway to define a gap therebetween. A lubricant is disposed in the gap for supporting the rotor within the stator. At least one of the outer raceway or the inner raceway are profiled with a non-circular, cross-sectional shape for maintaining consistent support of the rotor over a wide range of operating speeds and dynamic situations encountered by the lubricant supported electric motor during operation.

A guide rail oiling tool includes: a sliding body, which is capped on a guide rail and slidable along the guide rail, and has an inner side surface facing a surface to be oiled of the guide rail, a shape of the inner side surface being matched with a shape of the surface to be oiled of the guide rail; an oil inlet disposed on the sliding body; and an oiling groove in communication with the oil inlet, disposed on the inner side surface of the sliding body and surrounding the surface to be oiled of the guide rail, so that the oiling groove applies oil to the surface to be oiled of the guide rail when the sliding body is sliding.

A guide rail oiling tool includes: a sliding body, which is capped on a guide rail and slidable along the guide rail, and has an inner side surface facing a surface to be oiled of the guide rail, a shape of the inner side surface being matched with a shape of the surface to be oiled of the guide rail; an oil inlet disposed on the sliding body; and an oiling groove in communication with the oil inlet, disposed on the inner side surface of the sliding body and surrounding the surface to be oiled of the guide rail, so that the oiling groove applies oil to the surface to be oiled of the guide rail when the sliding body is sliding.

A pad bearing includes a pad disposed on a radially outer side of a rotary shaft and supporting the rotary shaft so as to be rotatable around an axis, a block-shaped nozzle member disposed on an upstream side with respect to the pad on the radially outer side of the rotary shaft and including a discharge hole for discharging a lubricant toward an outer peripheral surface of the rotary shaft, and a compressed flow forming unit disposed in at least one of the pad and the nozzle member and configured to compress a flow of the lubricant flowing along the outer peripheral surface of the rotary shaft as the rotary shaft rotates.

A pad bearing includes a pad disposed on a radially outer side of a rotary shaft and supporting the rotary shaft so as to be rotatable around an axis, a block-shaped nozzle member disposed on an upstream side with respect to the pad on the radially outer side of the rotary shaft and including a discharge hole for discharging a lubricant toward an outer peripheral surface of the rotary shaft, and a compressed flow forming unit disposed in at least one of the pad and the nozzle member and configured to compress a flow of the lubricant flowing along the outer peripheral surface of the rotary shaft as the rotary shaft rotates.

An eccentric shaft assembly includes a first eccentric shaft including an interior surface forming a recess therein, an exterior surface, at least one first fluid inlet extending between the interior surface and the exterior surface, at least one first fluid outlet extending between the interior surface and the exterior surface. The eccentric shaft assembly further includes a second eccentric shaft disposed in the recess of the first eccentric shaft that includes a second bearing surface engaging the first bearing subassembly opposite the first bearing surface and at least one first fan blade for rotating about an axis of rotation to force a fluid to enter the recess through the first fluid inlet(s) and exit the recess through the first fluid outlet(s), to lubricate and/or cool a bearing subassembly disposed between the first eccentric shaft and the second eccentric shaft.

An eccentric shaft assembly includes a first eccentric shaft including an interior surface forming a recess therein, an exterior surface, at least one first fluid inlet extending between the interior surface and the exterior surface, at least one first fluid outlet extending between the interior surface and the exterior surface. The eccentric shaft assembly further includes a second eccentric shaft disposed in the recess of the first eccentric shaft that includes a second bearing surface engaging the first bearing subassembly opposite the first bearing surface and at least one first fan blade for rotating about an axis of rotation to force a fluid to enter the recess through the first fluid inlet(s) and exit the recess through the first fluid outlet(s), to lubricate and/or cool a bearing subassembly disposed between the first eccentric shaft and the second eccentric shaft.

The present disclosure is directed towards a coupling assembly (13) for a machine (10). The coupling assembled comprises a pin (27) comprising at least a first pin passageway (31) for lubricant extending between a first pin passageway inlet (32) and a first pin passageway outlet (33) for directing lubricant outside of the pin (27). The coupling assembly (13) also comprises a distribution device (28) for distributing lubricant comprising at least one distribution device inlet (45) for receiving lubricant and at least one distribution device outlet (46, 62, 47, 48). The distribution device (28) is mounted to the pin (27) and the at least one distribution device outlet (46, 62, 47, 48) is arranged to direct lubricant into the first pin passageway inlet (32).

The present disclosure is directed towards a coupling assembly (13) for a machine (10). The coupling assembled comprises a pin (27) comprising at least a first pin passageway (31) for lubricant extending between a first pin passageway inlet (32) and a first pin passageway outlet (33) for directing lubricant outside of the pin (27). The coupling assembly (13) also comprises a distribution device (28) for distributing lubricant comprising at least one distribution device inlet (45) for receiving lubricant and at least one distribution device outlet (46, 62, 47, 48). The distribution device (28) is mounted to the pin (27) and the at least one distribution device outlet (46, 62, 47, 48) is arranged to direct lubricant into the first pin passageway inlet (32).