A snowmobile assembly including a chassis and suspension system. The suspension system configured to allow a selected suspension travel. The snowmobile further including a cooling system assembly.

There is provided a planar member having a flat portion that makes contact with the inner circumferential surface of an endless track at a position at a traveling subject side with respect to a virtual straight line that connects a vertex, at the traveling subject side, in the outer circumferential surface of a first pulley and a vertex, at the traveling subject side, in the outer circumferential surface of a second pulley.

A vehicle track system and assembly for outfitting vehicles for mobility in off-road conditions. Snow, mud, muck, soil, sand, ice, and other fickle conditions are more readily traversed. In an example, a hub assembly, a pair of drivers, a frame, a pair of rails, and a pair of tracks are all part of the vehicle track system and assembly. The drivers are incited to rotate by the hub assembly. The frame has multiple sets of frame members that are connected to the rails. And the tracks are furnished with numerous paddles and are driven to move via the drivers.

A snowmobile assembly including a chassis and suspension system. The suspension system configured to allow a selected suspension travel. The snowmobile further including a cooling system assembly.

Support structures for track systems are disclosed. One support structure includes a shaft, a wheel assembly and a deformable portion. The wheel assembly is connectable to the shaft, which has a shoulder at one end, such that a lateral side of the wheel assembly is engageable with said shoulder. The deformable portion is connected to one of the shaft and the wheel assembly, and is disposed, when the wheel assembly is connected to the shaft, between the lateral side of the wheel assembly and the shoulder. The deformable portion is configured to, when deformed, provide a seal between the shaft and the lateral side of the wheel assembly.

A working machine includes a track guide for restraining a crawler belt from displacement in a left-and-right direction. The track guide includes a front attachment member and a rear attachment member each detachably attached to a crawler frame, and a right contact plate member and a left contact plate member laid between the front attachment member and the rear attachment member. Each of the right contact plate member and the left contact plate member includes a restraint plate and a reinforcement plate, and is supported on the front attachment member and the rear attachment member with an outer surface of the restraint plate and an upper surface of the reinforcement plate both being in surface contact with the front attachment member and the rear attachment member.

A slider includes a first segment and a second segment. The first segment includes a first upper surface, a first lower surface, and a first interior surface that connects the first upper surface to the first lower surface. The first upper surface is configured to support a track. The first interior surface includes a first component of an attachment mechanism. The second segment includes a second upper surface, a second lower surface, and a second interior surface that connects the second upper surface to the second lower surface. The second upper surface is configured to support the track. The second interior surface includes a second component of the attachment mechanism that is configured to be removably attached to the first component.

A replaceable guide rail for a crawler includes a base that has a flange. The replaceable guide rail further includes a hole extending laterally through the flange that is configured to receive a fastener to secure a portion of the crawler to the flange, a guide member extending along the centerline and being configured to contact a track portion of the crawler and be worn down during movement of the track portion over the guide member, and a wear indicator positioned in the guide member configured to indicate whether the guide rail is in condition for replacement. The guide member has a thickness that is reduced as the guide member is worn down. The wear indicator is covered while the thickness is in a first range of thickness, and the wear indicator is exposed while the thickness is in a second range of thickness.

An endless track assembly that mounts to a vehicle drive linkage. The track assembly includes a belted track, drive sprocket and sets of longitudinally and laterally offset ramp/road and idler/road wheels mounted to parallel sets of vertically offset coplanar axles that support interior track surfaces. Axles mounted adjacent forwardmost and aftmost ramp/road wheels support “anti-jam” wheels that are longitudinally and vertically offset from the other axles at the framework to prevent a kinking of the track at the forwardmost and aftmost ends.