Abstract: Embodiments include a snowmobile comprising a frame and an engine, the engine including a crankcase mounted to the frame with a crankshaft axis of rotation positioned perpendicular to a longitudinal centerline of the frame. The crankcase includes a cast lower surface comprising a first structural wall extending substantially perpendicular to the longitudinal centerline and a second structural wall extending substantially perpendicular to the longitudinal centerline. The lower cast surface further includes a panel extending between the first structural wall and the second structural wall, the panel defining a curved surface and a mounting surface extending from the first structural wall and across at least a first portion of the panel. The snowmobile further comprises an engine mount connected to the frame comprising a housing and a damper.

Abstract: A method for determining a pedaling frequency of a bicycle, in particular an e-bike, includes (i) determining a movement signal representing a chronological progression of a locomotion of the bicycle, (ii) determining a frequency spectrum of the movement signal, and (iii) determining a pedaling frequency based on the determined frequency spectrum.

Abstract: Provided is a finite stroke type linear guide device including: a guide member (3) including a guide groove (30) and formed into a channel shape; a shaft member (4) configured to move inside the guide groove (30) along a longitudinal direction of the guide groove (30); a large number of rolling elements configured to roll between the guide member (3) and the shaft member (4) while bearing a load; and a cage (5) configured to be arranged inside the guide groove (30) of the guide member (3) so as to be present in a gap between the guide member (3) and the shaft member (4), the large number of rolling elements being rotatably arranged in the cage (5). Stoppers (6) are provided at both ends of the guide member (3) in a longitudinal direction, respectively, and are configured to allow the cage (5) to be brought into abutment against each of the stoppers (6).

Abstract: The present invention relates to an idler arrangement (80) for maintaining the desired tension in an endless track (34), said endless track (34) is part of a track assembly (30) comprising a track support beam (31), track road wheels (32) and at least one sprocket (33) arranged to drive the endless track (34) arranged around the track road wheels (32) and the sprocket (33), said idler arrangement (80) comprising: an idler wheel (35); an idler wheel support (81) fitted to the track support beam (31) and configured such that the idler wheel is movably arranged in relation to the support beam; a control unit (70); idler wheel position adjusting means operated by the control unit and arranged to position the idler wheel (35) in a desired position: and means for determine a requested torque to be applied by the sprocket and forwarding the determined information to the control unit, wherein the control unit is configured to operate the idler wheel position adjusting means to maintain, or adjust, the position of the

Abstract: A bearing device includes a bearing having first and second rings configured to rotate relative to each other about a central axis, a bushing, and an electrically insulating insert overmolded between and connecting the bushing and a second radial side of the second ring. A surface of the bushing facing the second ring includes at least one groove extending circumferentially around a groove axis, at least one rib of the electrically insulating insert extends into the at least one groove, and the at least one groove axis is radially offset from the central axis.

Abstract: A steering assembly for a vehicle including a housing and a shaft assembly supported in the housing. The shaft assembly includes a spindle and an anti-rotation component coupled to the spindle. The anti-rotation component restricts rotation of the spindle while permitting translation of the spindle relative to the housing. The spindle and the anti-rotation component are coupled together with a tolerance ring. The spindle can have a circular cross-sectional profile portion adapted to be received in a circular opening of the anti-rotation component. The tolerance ring can be interposed between the circular cross-sectional profile portion of the spindle and the anti-rotation component.

Abstract: A wheelchair including a frame and a suspension system. The suspension system may have at least one front caster arm pivotally connected to the frame, a front caster connected to the front caster arm, a first link, and a second link. The first link is pivotally connected to the frame, and the second link is slidably connected to the front caster arm and pivotally connected to the first link.

Abstract: A shoe for hydrodynamic bearing configured to be placed in contact with a lubricating fluid is described, the shoe includes a base made of metallic material, a coating made of insulating material coupled to the base, and a temperature probe. The probe includes a temperature sensor positioned inside the coating and a conducting wire extending between a first end connected to the temperature sensor and a second end facing outside the coating and configured to be in contact with the lubricating fluid.

Abstract: This gas bearing device comprises: a bump foil that is disposed on a stationary holding member facing a rotary member, and has a corrugated shape with a plurality of continuous peaks; and a top foil disposed on the bump foil. The bump foil includes a first bump foil on the rotary member side, and a second bump foil on the stationary holding member side that are disposed to face each other. The first bump foil and the second bump foil engage with each other so that sloping surfaces of the peaks thereof overlap each other, and gaps are formed respectively between the tops of the peaks and between the bottoms of the first bump foil and second bump foil overlapping each other.

Abstract: Provided are a cage for a rolling bearing capable of satisfying different required characteristics while securing cage strength, and a rolling bearing using the cage. A cage 5 holds a plurality of balls 4 in a rolling bearing 1, is guided by an outer ring 3, and includes: cage bodies 8 and 11 having an annular shape and including a pocket hole for accommodating each of the balls 4; a resin portion 9 formed at least in a portion on which each of the balls 4 slides in an inner surface of the pocket hole of the cage body 8; and a resin portion 12 having a composition different from that of the resin portion 9 and formed in a guide portion of the cage body 11 sliding on the outer ring 3.

Abstract: A cooling system can include a hydraulic oil tank. The cooling system can further include a return valve connected to the hydraulic oil tank to supply flow to a cooling circuit. The cooling circuit can include a hydraulic oil cooling (HOC) element and an axle oil cooling (AOC) element connected in series. The cooling system can include a flow control device to route oil away from the HOC and toward the AOC based on an oil condition or a system condition.

Abstract: A handcart open on two sides having a frame, wherein the frame has a front frame, a rear frame, two symmetrical side frames, a chassis and wheels; the front frame has two vertical pipes, a lower horizontal pipe, a baffle and two connecting belts; a fixing base and a wheel are arranged at the top and bottom of each vertical pipe respectively, and two ends of the lower horizontal pipe are respectively mounted on lower ends of the two vertical pipes; a low end of the baffle is rotatably connected with the low horizontal pipe, and two sides of the baffle are respectively riveted to the two fixing bases through one connecting belt; the rear frame also has a structure consisting of vertical pipes.

Abstract: A wheel system for a snowmobile ski provided with an adapter plate secured thereto is provided. The wheel system includes an actuating assembly having a support plate removably connectable to the adapter plate to enable connection and disconnection of the actuating assembly from the adapter plate and from the snowmobile ski. The wheel system also includes an actuator pivotally connectable to the support plate and operable between an idle configuration and an engaged configuration. The wheel system further has a wheel coupled to the actuator and adapted to be positioned in a raised position spaced from a ground surface when operating the actuating assembly in the idle configuration, and a lowered position in engagement with the ground surface when operating the actuating assembly in the engaged configuration.

Abstract: An axial roller bearing assembly includes an annular plastic cage comprising a plurality of openings distributed along the circumferential direction of the cage. A plurality of rollers are provided in a respective opening of the cage; and a support ring is provided circumferentially around the outer perimeter of the cage and in contact with the cage for providing strengthening support to the plastic material of the cage.

Abstract: Disclosed herein is a sway bar system comprising a damping link that couples a first end of a sway bar to a first location on a vehicle. The damping link is comprised of a body comprising a damping chamber and a reservoir. There is also a through shaft coupled to a piston, where the piston divides the chamber into a first chamber and a second chamber. A high-pressure line is fluidly coupled with the chamber and the reservoir and allows fluid to flow from the first chamber and the second chamber to the reservoir. A low-pressure line is fluidly coupled with the chamber and the reservoir and allows fluid to flow from the reservoir to the first chamber and the second chamber. The high-pressure line and the low-pressure line assist in self-centering the sway bar.

Abstract: A track tensioning mechanism and method includes a bracket assembly coupled to an axle of a tensioner wheel configured to engage a track to be tensioned. The bracket assembly has its own axle, which is configured to rotatably engage with a body of the vehicle. The axle of the bracket assembly is laterally offset from the axle of the tensioner wheel, enabling the track to be loosened or tightened by rotating the bracket assembly about its own axle between first and second positions.

Abstract: Disclosed is a track assembly comprising a track support beam for supporting road wheels, a drive wheel member, a drive arrangement for drive wheel member operation and an endless track disposed around said road wheels and drive wheel member. Said drive arrangement comprises a drive unit for drive wheel member drive, and a brake arrangement for braking of the drive wheel member. Said track support beam has an outer side facing away from a vehicle body and an inner side facing towards said vehicle body when said track assembly is connected to the vehicle body. Said drive arrangement comprises a drive axle coaxially arranged relative to a centre axis of said drive wheel member for rotating said drive wheel member. Said brake arrangement is configured to journal in bearings in connection to an outer portion of the drive axle protruding from the outer side of said track support beam.

Abstract: The invention relates to a fluid dynamic bearing system, comprising a bearing bush and a shaft rotatably supported in the bearing bush, wherein an annular pressure plate is arranged at the shaft and wherein a bearing gap is formed which is filled with a bearing fluid, and wherein at least one fluid dynamic axial bearing is formed between an end face of the pressure plate and an end face of a cover plate, wherein the fluid dynamic axial bearing has groove structures provided on the pressure plate or the cover plate wherein, in the connection or junction region between the shaft and the pressure plate, at least one axially extending recess or hole is present, wherein the opening of the recess or hole of the pressure plate and the groove structure of the axial bearing do not overlap in the radial direction.

Abstract: A steering device includes: a steering shaft; a transmitting mechanism configured to transmit the rotation of the steering shaft to a steered wheel; a power cylinder; a rotary valve configured to selectively supply a hydraulic fluid to the pair of the fluid chambers in accordance with the rotation of the steering shaft; and an electric motor configured to provide a rotation force through a speed reduction device to the steering shaft, the steering shaft including a first shaft connected to the steering wheel, and a second shaft connected to the first shaft, and configured to output the rotation force inputted from the first shaft, to the transmitting mechanism side, and the electric motor being connected through the speed reduction device to the second shaft.

Abstract: A rover includes a suspension configured to traverse uneven and unpredictable terrain, such as for example on an astronomical body. Each wheel is independently suspended off of the rover chassis with a linkage assembly comprising a pair of canted links which are able to continuously rotate relative to each other without collision or interference. The links allow the rover to independently adjust the height of each wheel relative to the chassis to drive over difficult terrain, and further allow the linkage assembly at each wheel to rotate 360° to effectively step or walk over particularly difficult terrain.