There is provided a perpendicular speed reducer including an input shaft, a reduction mechanism that reduces a speed of rotation of the input shaft, an output shaft that outputs the speed-reduced rotation, and a casing that accommodates the reduction mechanism. The input shaft and the output shaft are perpendicular to each other. The casing includes a bearing hole formed on a first side surface to support the output shaft, a fin provided along a direction toward the bearing hole, and a groove portion provided along an axial direction of the output shaft on a second side surface adjacent to the first side surface.

There is provided a perpendicular speed reducer including an input shaft, a reduction mechanism that reduces a speed of rotation of the input shaft, an output shaft that outputs the speed-reduced rotation, and a casing that accommodates the reduction mechanism. The input shaft and the output shaft are perpendicular to each other. The casing includes a bearing hole formed on a first side surface to support the output shaft, a fin provided along a direction toward the bearing hole, and a groove portion provided along an axial direction of the output shaft on a second side surface adjacent to the first side surface.

A solar tracking system is provided and includes a solar array, a support structure configured to support the solar array, a base configured to rotatably support the support structure, and an articulation system configured to articulate the support structure relative to the base. The articulation system includes a gearbox that is coupled to the support structure and an actuator that is configured to extend and retract. The actuator includes a first end portion and a second, opposite end portion, wherein the first end portion is rotatably coupled to the base and the second end portion is coupled to the gearbox. Extension of the actuator causes the support structure to rotate about the base in a first direction and retraction of the actuator causes the support structure to rotate about the based in a second, opposite direction.

A solar tracking system is provided and includes a solar array, a support structure configured to support the solar array, a base configured to rotatably support the support structure, and an articulation system configured to articulate the support structure relative to the base. The articulation system includes a gearbox that is coupled to the support structure and an actuator that is configured to extend and retract. The actuator includes a first end portion and a second, opposite end portion, wherein the first end portion is rotatably coupled to the base and the second end portion is coupled to the gearbox. Extension of the actuator causes the support structure to rotate about the base in a first direction and retraction of the actuator causes the support structure to rotate about the based in a second, opposite direction.

Embodiments are directed to solid lubricant assemblies for providing over temperature protection for bearings and gears in rotorcraft systems. A solid lubricant enters a fluid state above a certain temperature and is positioned so that fluid lubricant is applied to the bearings or gears.

A gear unit is described as having a first and a second housing part, an intermediate shaft of the gear unit being mounted via two bearings in a bushing accommodating the bearings, the bushing centering the first housing part against the second housing part.

A gear unit is described as having a first and a second housing part, an intermediate shaft of the gear unit being mounted via two bearings in a bushing accommodating the bearings, the bushing centering the first housing part against the second housing part.

The invention relates to a bevel gear box for use as part of the steering mechanism of a commercial vehicle. The invention may be suited to use where the controlled axles of the vehicle are located below the passenger compartment. The bevel gear box may comprise box housing, which in turn houses two separate bevel gear barrel assemblies. The exemplified bevel gear barrel assemblies each comprise a bevel gear, the bevel gear further comprising a gear head incorporating teeth and a gear shaft—4. Shaft housing surrounds a circumference of gear shaft 4. To enable the bevel gear to rotate within the shaft housing, bearings may be placed between surfaces of the bevel gear and the shaft housing. The face of the gear head may comprise a gear head recess for location of a center dowel therein.

The invention relates to a bevel gear box for use as part of the steering mechanism of a commercial vehicle. The invention may be suited to use where the controlled axles of the vehicle are located below the passenger compartment. The bevel gear box may comprise box housing, which in turn houses two separate bevel gear barrel assemblies. The exemplified bevel gear barrel assemblies each comprise a bevel gear, the bevel gear further comprising a gear head incorporating teeth and a gear shaft—4. Shaft housing surrounds a circumference of gear shaft 4. To enable the bevel gear to rotate within the shaft housing, bearings may be placed between surfaces of the bevel gear and the shaft housing. The face of the gear head may comprise a gear head recess for location of a center dowel therein.

A geared motor, e.g., a gear unit or a bevel gear unit, which is able to be driven by an electric motor, includes a housing part, which is produced by a die casting method, during or after which sliders are moved, in particular pulled out, in respective drawing directions for the demolding, and an input shaft. The housing part includes a channel, demolded in a first drawing direction, in particular, using a first slider, the channel being adapted to extend through the wall of the housing and ending in the interior space region of the gear unit. The drawing direction has a non-vanishing angle in relation to the axis of rotation of the input shaft, its angle in particular amounting to between 5° and 45°, e.g., between 5° and 20°.