A traction drive system for a vehicle includes a housing, a high-speed motor, a motor controller, a transmission, a cooling system, and a lubricating oil system. The housing defines a motor cavity, an electronics cavity, an oil cavity, and a cooling fluid cavity. The cooling fluid cavity is thermally coupled to each of the motor, electronics, and oil cavities. The high-speed motor is substantially within the motor cavity and coupled to a lubricating oil system fluidically coupled to the oil cavity. The motor controller includes electronics within the electronics cavity. The transmission is mechanically coupled to the high-speed motor and coupled to the lubricating oil system fluidically coupled to the oil cavity. The cooling system is fluidically coupled to the cooling fluid cavity and configured to cool the high-speed motor, the motor controller, and the lubricating oil system.

A transmission housing includes a one-piece main housing including a generally annular wall structure cast from aluminum and including a plurality of axially extending raised ribs extending from a first axial end of the wall structure to a second axial end of the wall structure, a plurality of angularly extending raised ribs extending between at least some of the adjacent ones of the plurality of axially extending raised ribs. According to another aspect, the generally annular wall structure includes a plurality of wave structures extending axially along the wall structure.

A traction drive system for a vehicle includes a housing, a high-speed motor, a motor controller, a transmission, a cooling system, and a lubricating oil system. The housing defines a motor cavity, an electronics cavity, an oil cavity, and a cooling fluid cavity. The cooling fluid cavity is thermally coupled to each of the motor, electronics, and oil cavities. The high-speed motor is substantially within the motor cavity and coupled to a lubricating oil system fluidically coupled to the oil cavity. The motor controller includes electronics within the electronics cavity. The transmission is mechanically coupled to the high-speed motor and coupled to the lubricating oil system fluidically coupled to the oil cavity. The cooling system is fluidically coupled to the cooling fluid cavity and configured to cool the high-speed motor, the motor controller, and the lubricating oil system.

A lightweight gearbox control mechanism for air cushion vehicles provides change in direction of rotation for the vehicle lift fan and allows the gearbox to be used at port or starboard vehicle locations without the use of specialty tools.

A transmission has a transmission housing. The transmission housing has a first opening formed in a first wall and a second opening formed in a second wall. The transmission includes a shaft that is mounted rotatably on the transmission housing via bearing devices arranged in the first opening and the second opening. The transmission includes respective covers, by which the first opening and the second opening are closed. In addition, the transmission includes screw elements, by which the covers are held on the transmission housing. A coupling element, to which the screw elements are screwed in order to hold the covers on the transmission housing, is provided. As a result of this, the first wall and the second wall are pretensioned in an axial direction of the shaft.

A case component of a transaxle includes: a bearing unit having a through-hole through with a shaft member is to be inserted; a matching surface unit having a matching surface on which another member is to be overlapped; bolt hole portions formed on the matching surface unit; bent wall portions, each having a V-shaped or U-shaped cross-section cut in a direction orthogonal to a straight line connecting a shaft center of the bearing unit and a shaft center of the bolt hole portions, each having a valley portion positioned on the straight line, and connecting the bearing unit and the respective bolt hole portions; and V-shaped portions, connected with the respective bent wall portions, provided on an outer circumference of the respective bolt hole portions, and protruding toward the bearing unit.

A housing for a transmission, in particular an actuator housing. The housing having a housing wall and ribs that protrude from the housing wall to the outside and/or inside. The protruding ribs are at least partially arranged such that they form a honeycomb-shaped structure on the housing wall.

A housing for a transmission, in particular an actuator housing. The housing having a housing wall and ribs that protrude from the housing wall to the outside and/or inside. The protruding ribs are at least partially arranged such that they form a honeycomb-shaped structure on the housing wall.

A steering gear housing and method of manufacturing same are provided. The steering gear housing is comprised of aluminum alloy and is at least partially anodized. The steering gear housing defines a plurality of mounting apertures. A plurality of nuts is fit into a respective one of the mounting apertures for use in mounting to a vehicle. Each of the nuts defines a plurality of splines for establishing a press-fit relationship between the mounting apertures and the nuts. The method involves casting a steering gear housing defining a plurality of mounting apertures out of aluminum alloy. Next, the casted steering gear housing is at least partially anodized. After anodization, a plurality of nuts is fit into respective ones of the mounting apertures. The nuts define splines for allowing a press-fit relationship to be established between the mounting apertures and the nuts.

Disclosed is a drivetrain comprising a frame defining a central plane respectively opposite half-spaces, and two driving lines housed in such half-spaces; the driving lines comprise respective torque input elements and torque output elements, and they further comprise at least a cross-plane intermediate element adapted to transmit torque coming from the first or from the second torque input towards the first or to the second torque output and across said central plane.