An object of the present invention is to provide a unidirectional rotating motor, which can avoid reverse rotation of the motor due to heavy loads. The present invention employs the following technical solution. A unidirectional rotating motor is provided, comprising an output shaft; one end of the output shaft is, as an output end, extended to an outer side of the motor, and the other end of the output shaft is, as a fitting end, provided with a unidirectional bearing; an inner ring of the unidirectional bearing is linked to the fitting end of the output shaft and an outer ring of the unidirectional bearing is fitted with a first bushing and a second bushing; the first bushing consists of a first bushing segment I and a first bushing segment II, and the first bushing segment I has an inner diameter greater than that of the first bushing segment II; the second bushing at least consists of a second bushing segment I and a second bushing segment II, and the second bushing segment I has an inner diameter greater than that of the second bushing segment II; the first bushing and the second bushing are detachably fixed; and an outer bearing is fixed on an outer side of the second bushing, and an inner ring of the outer bearing is fixed to the second bushing.

The wave generator of a strain wave gearing is provided with an ellipsoidally contoured wave generator plug and a wave generator bearing. The wave generator bearing is provided with an annular body fitted between inner and outer races in a sliding contact state. The annular body is composed of an endless coil spring and has a rigidity that is able to maintain a constant gap between the inner and outer races. The annular body also has a specified overall flexibility in the radial direction so that the annular body can be flexed into an ellipsoidal shape by the wave generator plug. Since sliding occurs between the annular body and the inner race when the wave generator plug rotates, it is possible to generate a wave motion in an externally toothed gear with a small rotational torque.

The following invention relates to smart material couplings, particularly to shape memory alloy drivetrain systems to mitigate against shock or blast.

There is provided an armoured land vehicle comprising:an armoured v shaped hull; a powerplant located within said chassis, at least one wheel set with a hub, and, at least one drive shaft comprising a shape memory alloy, wherein said drivetrain is located between and operably connected via drive couplings to said powerplant and the hub of the at least one wheel set, to provide drive to said at least one wheel set.

The present application discloses a motor mechanical limiting device for limiting rotation of a motor. The device includes: a limiting ring, a first limiting device, and a second limiting device. The first limiting device is fixedly connected on a rotor of motor. The second limiting device is fixed on a motor stator. The limiting ring is in bearing connection with the rotor of motor. The limiting ring protrudes to form a stopping edge. Both the first limiting device and the second limiting device are located on a circumferential rotation path of the stopping edge, and the second limiting device is provided with a region for the first limiting device to pass through.

The present application discloses a motor mechanical limiting device for limiting rotation of a motor. The device includes: a limiting ring, a first limiting device, and a second limiting device. The first limiting device is fixedly connected on a rotor of motor. The second limiting device is fixed on a motor stator. The limiting ring is in bearing connection with the rotor of motor. The limiting ring protrudes to form a stopping edge. Both the first limiting device and the second limiting device are located on a circumferential rotation path of the stopping edge, and the second limiting device is provided with a region for the first limiting device to pass through.

A vehicle liftgate assembly according to an exemplary aspect of the present disclosure includes, among other things, a vehicle body, a liftgate bracket, a liftgate rotatably mounted to the vehicle body by way of the liftgate bracket, and a strut connected to the liftgate bracket to regulate rotational movement of the liftgate bracket. This disclosure also relates to a method and a rotation assembly, which may include a liftgate bracket and a flipglass bracket.

A turbofan engine (20) comprises a fan (28). A fan drive gear system (60) is configured to drive the fan. A low spool comprises a low pressure turbine (50) and a low shaft (56) coupling the low pressure turbine to the fan drive gear system. An intermediate spool comprises an intermediate pressure turbine (48), a compressor (42), and an intermediate spool shaft (54) coupling the intermediate pressure turbine to the intermediate spool compressor. A combustor (45) is between a core spool compressor (44) and a high pressure turbine (46). A first (160) main bearing engages a static support (164; 164) and a forward hub (236) of the intermediate spool. A second (162) main bearing engages the low shaft and the forward hub.

The present disclosure is directed to a bearing for a wind turbine. The bearing includes an outer race, an inner race, and a radially-split center race configured between the inner race and the outer race. Further, the center race includes a first race portion and a separate second race portion. In addition, the first and second race portions are arranged together in an axial direction. The bearing also includes a first set of rolling elements positioned between the inner race and the center race and a second set of rolling elements positioned between the center race and the outer race.

A pressure plate bearing device assembled by quick connection includes a bearing and a pressure plate. The pressure plate includes a sleeving hole which sleeves outside an outer race of the bearing, a limiting groove provided in a position where the outer race of the bearing is nested in the sleeving hole in a matching manner, and a steel ball arranged in the limiting groove. Based on the limiting match between the steel ball and the sleeving hole and that between the steel ball and the outer race of the bearing, at least the axial limit between the bearing and the pressure plate is at least fulfilled. The outer race of the bearing or the pressure plate is provided with a mounting channel that is in communication with the limiting groove. The pressure plate bearing device assembled by the quick connection is more easily assembled and reliably connected.

A pressure plate bearing device assembled by quick connection includes a bearing and a pressure plate. The pressure plate includes a sleeving hole which sleeves outside an outer race of the bearing, a limiting groove provided in a position where the outer race of the bearing is nested in the sleeving hole in a matching manner, and a steel ball arranged in the limiting groove. Based on the limiting match between the steel ball and the sleeving hole and that between the steel ball and the outer race of the bearing, at least the axial limit between the bearing and the pressure plate is at least fulfilled. The outer race of the bearing or the pressure plate is provided with a mounting channel that is in communication with the limiting groove. The pressure plate bearing device assembled by the quick connection is more easily assembled and reliably connected.