A transmission includes an input shaft coupled to a prime mover, a countershaft, main shaft, and an output shaft, with gears between the countershaft and the main shaft. A shift actuator selectively couples the input shaft to the main shaft by rotatably coupling gears between the countershaft and the main shaft. The shift actuator is mounted on an exterior wall of a housing including the countershaft and the main shaft. An integrated actuator housing is operationally coupled to the shift actuator and a linear clutch actuator. The linear clutch actuator is a self-adjusting actuator, and the transmission includes a self-adjusting clutch.

A housing is provided with a receiving area for a mounting part of a mount assembly fastened to the receiving area by a substance-to-substance bond. The receiving area has a centering portion for the mounting part and possibly a positioning portion for the mounting part which is operative in axial direction and transitions into an adjacent housing wall via a housing edge. The receiving area is provided in the radial extension region of the housing edge with a clearance operative in axial direction relative to the mounting part.

A rotational mechanism includes a frame, a plurality of rotational units, an inner ring rotatably supported on the frame via the plurality of rotational units, and a rotation driving unit configured to generate power for rotating the inner ring. The inner ring is provided with a protrusion portion on an outer periphery. Each of the plurality of rotational units includes two bearings and a first pressing unit. The first pressing unit is configured to apply pressing forces to the two bearings in opposite directions in a rotational axis direction of the inner race. The protrusion portion is held between the two bearings due to the pressing forces.

A transmission includes an input shaft coupled to a prime mover, a countershaft, main shaft, and an output shaft, with gears between the countershaft and the main shaft. A shift actuator selectively couples the input shaft to the main shaft by rotatably coupling gears between the countershaft and the main shaft. The shift actuator is mounted on an exterior wall of a housing including the countershaft and the main shaft. An integrated actuator housing is operationally coupled to the shift actuator and a linear clutch actuator. The linear clutch actuator is a self-adjusting actuator, and the transmission includes a self-adjusting clutch.

A linkage-based shifting assembly comprises first and second arms, having a first wheel rotatably coupled to a proximal end of the first arm and a second wheel rotatably coupled to a proximal end of the second arm. A shifting assembly is configured to couple to a chassis, wherein the shifting assembly is coupled to distal ends of the first and second arms and configured to cause a relative shifting motion between the chassis and the first and second wheels. The linkage-based shifting assembly can form part of a vehicle. The vehicle can be a two-wheeled vehicle. The vehicle can be a mobile carrier. The mobile carrier can be a two-wheeled vehicle.

A differential assembly including a differential housing, a gear assembly, a shaft, and a ring gear. The differential housing generally includes a peripheral wall, first and second end walls connected to the peripheral wall and spaced apart along a rotational axis so that the peripheral wall and the first and second end walls, in combination, define an internal cavity, a transitional region defined in the differential housing where the second end wall meets the peripheral wall, and a first window formed through the peripheral wall, the transitional region, and/or the second end wall and into the internal cavity, the first window including a central portion and first and second ear portions adjoining the central portion and extending outwardly therefrom. The first window defines a shape when projected perpendicularly onto a first plane including both the rotational axis and a pinion axis, said pinion axis extending perpendicular to the rotational axis.

A vehicle includes: a power unit including a transmission that changes the speed of rotation produced by output power of a drive source for travel and a case accommodating the transmission, the transmission including a pivotally supported change shaft, the change shaft being angularly movable about an axis to change a gear ratio of the transmission; and an operation unit that operates to angularly move the change shaft, the operation unit including an electric motor and a power transmission structure that transmits power of the electric motor to the change shaft in the form of rotational power by which the change shaft is angularly moved. The operation unit is mounted on an exterior of the case.

A motor generator including a rotor and a motor output shaft that rotates integrally with the rotor, a connecting shaft capable of rotating coaxially with the motor output shaft, a hydraulic clutch interposed between the rotor and the connecting shaft, the hydraulic clutch switching transmission and non-transmission of torque between the rotor and the connecting shaft, and an auxiliary to be driven by rotation of the input shaft are provided. The input shaft of the auxiliary is mechanically linked with the connecting shaft.

An electric actuator for use with a variable drive apparatus is disclosed herein. The electric actuator has a rotary design incorporating a magnetic field sensor chip disposed on a circuit board to sense the rotational orientation of the magnetic field of a cylindrical diametric magnet positioned on the end of a control shaft of a hydrostatic drive unit. The circuit board includes a microprocessor, electric motor power control and CAN Bus communication capability. The gear housing of the electric actuator features an integral end cap to accommodate mounting of the electric motor to enable a compact design. A vibration damping apparatus may be utilized to improve integrity of signals generated by the magnetic field sensor chip.

A method of retrofitting a gear box assembly with an emergency lubrication system includes removing plugs from visual inspection ports of a gearbox housing, removing a breather from a breather port of the gearbox housing, and installing jet plugs into the respective visual inspection ports and breather port, wherein each jet plug includes a respective jet tube.