A transmission includes a housing and a distributor part to which lubricating oil is able to be applied through a recess in the housing, e.g., in a housing part of the housing or in a cover part of the housing. The distributor part includes a collection region and feeder channels, which are connected to the collection region and are able to convey lubricating oil to bearings of the transmission.

There is provided a gear device including a motor having a motor shaft, a gear mechanism, a coupling that couples the motor shaft and an input shaft of the gear mechanism with each other, a first space accommodating the gear mechanism and holding a lubricant, a communication passage allowing the first space and a second space for accommodating the coupling to communicate with each other, and a blocking member disposed between the gear mechanism and the communication passage.

A dynamic damper for suppressing vibration generated by a gear attached to a rotation shaft, the dynamic damper, includes: a mass body that is disposed inside a rotation shaft having a hollow shape and extends along a shaft center of the rotation shaft; and an elastic body that couples the mass body to the rotation shaft. Further, a flow path for lubricating liquid to flow is provided between an inner peripheral surface of the rotation shaft and the mass body, and the flow path is formed by the inner peripheral surface of the rotation shaft at an axial position where the elastic body is disposed.

In one embodiment of the present disclosure, there is provided an aircraft gearbox including a gear and a gear shrouding for providing lubrication to the gear. The gear shrouding is disposed around the gear, has an inner surface facing the gear and an opposing outer surface facing away from the gear, and includes a channel formed along at least a portion of the gear shrouding between the inner surface and the outer surface of the gear shrouding, an input orifice extending to the channel, wherein the input orifice is at a first position on the channel, and an output orifice extending to the channel, wherein the output orifice is at a second position on the channel different from the first position. In another embodiment, the gear shrouding further includes a second output orifice at a third position on the channel different from the first and second positions.

In some examples, an aircraft gearbox comprises a housing, a barrier, a rotatable drive system component, a set of gears, and a lubrication system. The barrier separates a first compartment and a second compartment within the housing. Each of the rotatable drive system component and the set of gears operable to rotate based on torque received from an engine. The rotatable drive system component is located in the first compartment. The set of gears is located in the second compartment. The lubrication system comprises a first lubrication subsystem and a second lubrication subsystem, which are, at least in part, independent from one another. The first lubrication subsystem is operable to lubricate the rotatable drive system component in the first compartment. The second lubrication subsystem is operable to lubricate the set of gears in the second compartment. The barrier inhibits lubricant from passing between the first compartment and the second compartment.

A gas turbine engine comprises a fan drive turbine driving a shaft. The shaft engages a gear reduction. The gear reduction drives a fan rotor at a speed that is less than the speed of the fan drive turbine. The gear reduction is a non-epicyclic gear reduction.

The present disclosure relates to an in-wheel driving apparatus, and an in-wheel driving apparatus includes a case having an interior space, a first gear disposed in the interior space to be rotatable about a first rotary shaft, a second gear engaged with the first gear and disposed in the interior space to be rotatable about a second rotary shaft, and a first partition wall including a first area provided along a circumference of the first gear and a second area extending from one end of the first area in a direction that is away from the first rotary shaft, and disposed in the interior space.

A robot includes: a first arm having a first body, a first housing fixed to the first body, and a first gear transmitting power to a rotary member supported by the first housing so as to be rotatable; a second arm supporting the first arm and having a second body, a second shaft having a second gear meshing with the first gear, and a second bearing supporting the second shaft so that the second shaft is rotatable relative to the second body; and a channel in the arms. An inlet of the channel is formed in an outer surface of the first body, an outlet of the channel opening into a space in which an outer peripheral surface of the second shaft and the second bearing are arranged inside the second arm, the channel extending from the inlet to the outlet through inside of the first body.

Disclosed is a motor operating module, where the motor operating module includes a motor including a rotor and a stator, a gear unit provided on one side of the motor, and being configured to receive torque of the rotor and to transmit the torque to outside, and a housing configured to accommodate the motor and the gear unit in an inner space, wherein the inner space of the housing comprises a front space formed on a first side of the motor, a rear space formed on a second side of the motor opposite to the first side, rear-facing connection flow paths extending from the front space toward the rear space and providing a path for a cooling fluid to flow, and the cooling fluid is churned by the rotation of the gear unit to flow from a lower region of the housing into the rear space via the rear-facing connection flow paths. According to the present disclosure, a motor may be cooled by using a churning effect of an oil caused by rotation of a gear without a separate operating device such as a pump.

Multifunction baffles and work equipment transmissions containing multifunction baffles are provided. In various embodiments, the work equipment transmission includes a gearbox housing having an outlet port, a sump retaining a lubricant reservoir, and a first gear rotatably mounted in the gearbox housing such that a portion of the first gear is located below an upper surface of the lubricant reservoir. A multifunction baffle, which is installed within the gearbox housing, includes a circumferential shroud wall and an integrated suction tube. The integrated suction tube includes, in turn, a suction tube body integrally formed with the circumferential shroud wall, an inlet end portion in fluid communication with the lubricant reservoir, an outlet end portion in fluid communication with the outlet port, and a lubricant flow passage within the suction tube body and through which the lubricant is drawn from the lubricant reservoir.