Abstract: Systems and methods for a temperature measurement device. A transmission includes a rotatable housing. The temperature measurement positioned on a transmission housing. The interior volume of the rotatable housing is partially filled with lubricant of transmission components residing within the interior volume of the housing. The temperature measurement device in contact with the lubricant and in communication with a device exterior to the transmission.

Abstract: A rotary pneumatic seal may have a ring-shaped inner radial seal with an inner lip extending in an axial direction, an outer lip extending in the same axial direction, a connecting flange connecting the inner lip and the outer lip, a pneumatic sealing lip, and an oil sealing lip. The rotary pneumatic seal may also have a ring-shaped outer radial seal located radially outward from the inner radial seal. The outer radial seal may also have a first wall extending in an outward radial direction, a second wall extending in an opposite inward radial direction, a central flange connecting the first and second walls, and a dust lip.

Abstract: A planetary gearbox including a first planetary gear assembly and a second planetary gear assembly. The first planetary gear assembly includes a first sun gear, a first carrier, at least one first planet gear mounted in the first carrier, and a ring gear. The second planetary gear assembly includes a second sun gear, a second carrier, at least one second planet gear mounted in the second carrier, and the ring gear. The ring gear comprises a unitary, single-piece main body including a plurality of first teeth and a plurality of second teeth formed thereon. The first teeth are spaced apart from the second teeth to form a channel therebetween. The channel is configured to receive a bushing therein.

Abstract: A transmission in combination with a temperature measurement device and a device exterior to the transmission. The transmission includes a rotatable housing which drives a wheel of a vehicle, a wireless transceiver in communication with a thermistor embedded within molding, a battery embedded within the molding, and the molding resides within the housing. The temperature measurement device resides in a wall of the rotatable housing and the rotatable housing includes an interior volume. The interior volume of the rotatable housing is partially filled with oil for lubrication of transmission components residing within the interior volume of the housing. The temperature measurement device is rotated through the oil and out of the oil within the rotating housing when the rotating housing is in motion.

Abstract: A planetary gearbox including a first planetary gear assembly and a second planetary gear assembly. The first planetary gear assembly includes a first sun gear, a first carrier, at least one first planet gear mounted in the first carrier, and a ring gear. The second planetary gear assembly includes a second sun gear, a second carrier, at least one second planet gear mounted in the second carrier, and the ring gear. The ring gear comprises a unitary, single-piece main body including a plurality of first teeth and a plurality of second teeth formed thereon. The first teeth are spaced apart from the second teeth to form a channel therebetween. The channel is configured to receive a bushing therein.

Abstract: A planetary gearbox including a first planetary gear assembly, a second planetary gear assembly, and a disconnect assembly. The first planetary gear assembly includes a first sun gear, a first carrier, at least one first planet gear mounted in the first carrier, and a ring gear. The second planetary gear assembly includes a second sun gear, a second carrier, at least one second planet gear mounted in the second carrier, and the ring gear. The disconnect assembly includes a disconnect member and a connecting member. The disconnect member is coupled to the second carrier of the second planetary gear assembly, and the connecting member is coupled to both the disconnect member and the movable second sun gear.

Abstract: A transmission in combination with a temperature measurement device and a device exterior to the transmission. The transmission includes a rotatable housing which drives a wheel of a vehicle, a wireless transceiver in communication with a thermistor embedded within molding, a battery embedded within the molding, and the molding resides within the housing. The temperature measurement device resides in a wall of the rotatable housing and the rotatable housing includes an interior volume. The interior volume of the rotatable housing is partially filled with oil for lubrication of transmission components residing within the interior volume of the housing. The temperature measurement device is rotated through the oil and out of the oil within the rotating housing when the rotating housing is in motion.

Abstract: A planetary wheel drive uses: main bushings affixed to a rotatable housing between a stationary spindle permitting the rotatable output housing to rotate with respect to the stationary spindle, and, planet bushings affixed to rotatable planet gear between a planet pin permitting the planet gear to rotate with respect to the planet pin. The main bushings have two sides, a first side which is press fit into the rotatable output housing and a second side which includes a sliding layer which mates with a surface of the stationary housing.

Abstract: A planetary wheel drive uses a single wall output planet carrier includes an internal spline fixed against rotation through an interconnection with an external spline of the stationary spindle. A locking lug of the single wall output planet carrier extends into a notch of a bearing nut. The locking lug prevents the bearing nut from unthreading itself from the stationary spindle. An output planet thrust plate is bolted to an output planet pin.

Abstract: A planetary wheel drive uses: main bushings affixed to a rotatable housing between a stationary spindle permitting the rotatable output housing to rotate with respect to the stationary spindle, and, planet bushings affixed to rotatable planet gear between a planet pin permitting the planet gear to rotate with respect to the planet pin. The main bushings have two sides, a first side which is press fit into the rotatable output housing and a second side which includes a sliding layer which mates with a surface of the stationary housing.

Abstract: A planetary wheel drive uses a single wall output planet carrier includes an internal spline fixed against rotation through an interconnection with an external spline of the stationary spindle. A locking lug of the single wall output planet carrier extends into a notch of a bearing nut. The locking lug prevents the bearing nut from unthreading itself from the stationary spindle. An output planet thrust plate is bolted to an output planet pin.

Abstract: A planetary wheel drive uses a brake having a stamped spring plate which includes a plurality of spring stabilizer connections. Each one of the plurality of springs is mechanically bonded to a respective one of the plurality of spring stabilizer connections. A brake piston includes a bore therethrough and resides in sliding engagement with the stationary spindle. The brake piston is generally cylindrically shaped with an inner portion and an outer portion. The plurality of coil springs reside between said spring stabilizers and said inner shoulder of said brake piston. Pressurized hydraulic fluid releases the brake.

Abstract: A compact planetary wheel drive uses a high speed input planet carrier partially residing with a stationary spindle, and, an input planet gear engaging an internal ring gear within the stationary spindle. Inclusion of the input planet gear within the stationary spindle enables use of an additional stage of the planetary wheel drive while keeping the planetary wheel compact. Two and three stage planetaries may be accommodated with use of the same internal output ring gear of the rotatable output housing.

Abstract: A planetary wheel drive uses a brake having a stamped spring plate which includes a plurality of spring stabilizer connections. Each one of the plurality of springs is mechanically bonded to a respective one of the plurality of spring stabilizer connections. A brake piston includes a bore therethrough and resides in sliding engagement with the stationary spindle. The brake piston is generally cylindrically shaped with an inner portion and an outer portion. The plurality of coil springs reside between said spring stabilizers and said inner shoulder of said brake piston. Pressurized hydraulic fluid releases the brake.

Abstract: A planetary wheel drive uses a single wall output planet carrier includes an internal spline fixed against rotation through an interconnection with an external spline of the stationary spindle. A locking lug of the single wall output planet carrier extends into a notch of a bearing nut. The locking lug prevents the bearing nut from unthreading itself from the stationary spindle. An output planet thrust plate is bolted to an output planet pin.

Abstract: A planetary wheel drive uses a thrust washer residing between a cover and a thrust plate to absorb axial loads. The thrust washer is has a slip fit to the cover. The surface area of the thrust washer engaging the cover is larger than the surface area of the thrust washer engaging the thrust washer.

Abstract: A planetary wheel drive uses: main bushings affixed to a rotatable housing between a stationary spindle permitting the rotatable output housing to rotate with respect to the stationary spindle, and, planet bushings affixed to rotatable planet gear between a planet pin permitting the planet gear to rotate with respect to the planet pin. The main bushings have two sides, a first side which is press fit into the rotatable output housing and a second side which includes a sliding layer which mates with a surface of the stationary housing.

Abstract: A compact planetary wheel drive uses a high speed input planet carrier partially residing with a stationary spindle, and, an input planet gear engaging an internal ring gear within the stationary spindle. Inclusion of the input planet gear within the stationary spindle enables use of an additional stage of the planetary wheel drive while keeping the planetary wheel compact. Two and three stage planetaries may be accommodated with use of the same internal output ring gear of the rotatable output housing.

Abstract: A planetary wheel drive uses: main bushings affixed to a rotatable housing between a stationary spindle permitting the rotatable output housing to rotate with respect to the stationary spindle, and, planet bushings affixed to rotatable planet gear between a planet pin permitting the planet gear to rotate with respect to the planet pin. The main bushings have two sides, a first side which is press fit into the rotatable output housing and a second side which includes a sliding layer which mates with a surface of the stationary housing.

Abstract: A planetary wheel drive uses a single wall output planet carrier includes an internal spline fixed against rotation through an interconnection with an external spline of the stationary spindle. A locking lug of the single wall output planet carrier extends into a notch of a bearing nut. The locking lug prevents the bearing nut from unthreading itself from the stationary spindle. An output planet thrust plate is bolted to an output planet pin.