A landing leg assembly for a heavy duty commercial vehicle includes a first leg member defining an interior space, a second leg member telescopingly engaging the first leg member and movable between a retracted position and an extended position with respect to the first leg member, a gear assembly at least partially located within the interior space of the first leg member and operably coupled to the second leg member and configured to receive an input from a user to move the first leg member between the retracted and extended positions, the gear assembly including a shaft member and a gear member fixed for rotation with the shaft member, and an integral, single-piece bearing member including a bore that rotatably receives the shaft member, wherein the bearing member comprises a powdered metal and is directly welded to the first leg member.

A landing leg assembly for a heavy duty commercial vehicle includes a first leg member defining an interior space, a second leg member telescopingly engaging the first leg member and movable between a retracted position and an extended position with respect to the first leg member, a gear assembly at least partially located within the interior space of the first leg member and operably coupled to the second leg member and configured to receive an input from a user to move the first leg member between the retracted and extended positions, the gear assembly including a shaft member and a gear member fixed for rotation with the shaft member, and an integral, single-piece bearing member including a bore that rotatably receives the shaft member, wherein the bearing member comprises a powdered metal and is directly welded to the first leg member.

A torque load binder for changing tension in a chain or strap securing a load to a vehicle or support surface. The load binder includes a housing with an internal gear mechanism and a connector mechanism operatively engaged with the gear mechanism and extending outwardly from the housing. A high speed first driveshaft and a lower speed second driveshaft on the load binder are selectively individually actuated to effect movement between first and second end linkages of the connector mechanism. The first driveshaft effects movement between the first and second end linkages at a first speed and the second driveshaft effects movement between the end linkages at a lower second speed. Rotation of either of the first or second driveshafts actuates the connector mechanism, changing the distance between the first and second end linkages, and thereby changing the tension in the tie-down.

A torque load binder for changing tension in a chain or strap securing a load to a vehicle or support surface. The load binder includes a housing with an internal gear mechanism and a connector mechanism operatively engaged with the gear mechanism and extending outwardly from the housing. A high speed first driveshaft and a lower speed second driveshaft on the load binder are selectively individually actuated to effect movement between first and second end linkages of the connector mechanism. The first driveshaft effects movement between the first and second end linkages at a first speed and the second driveshaft effects movement between the end linkages at a lower second speed. Rotation of either of the first or second driveshafts actuates the connector mechanism, changing the distance between the first and second end linkages, and thereby changing the tension in the tie-down.

A linear jack includes an outer sleeve, an inner sleeve disposed at least partially within the outer sleeve, and an inner screw disposed at least partially within the inner sleeve. The outer sleeve is threadedly coupled to an outer diameter surface of the inner sleeve. The inner screw is threadedly coupled to an inner diameter surface of the inner sleeve. A thread pitch of the outer sleeve is greater than a thread pitch of the inner screw.

A lifting system for generating a lifting force on a portion of a vehicle includes a vehicle wheel and a force-generating mechanism structured to be received inside a rim cavity of the wheel. The force-generating mechanism is also structured to be operably connected to a frame of a vehicle. A bearing member is operably connected to the force-generating mechanism. The bearing member is structured to transmit a force generated by the force-generating mechanism to a surface in physical contact with the bearing member. The bearing member is also structured for operably connecting the wheel to the force-generating mechanism. Force applied by the force-generating mechanism may be sufficient to lift a portion of the vehicle off of a ground surface, or the force may only be sufficient to apply a parking brake force without lifting the vehicle.

A jack apparatus has a main jack body defined by telescopically engaged outer and inner tubes, a selectively positionable clamp assembly positioned along the jack body for selective engagement with the object to which a force is to be applied, and a drive assembly located on and within the jack body. In a further related aspect a retainer is configured for being mounted on the object to be moved or lifted and for positively engaging a receiver on the clamp assembly so as to effectively lock the jack to the object being lifted such as a vehicle for safe and effective operation.

A trailer crank extension device for automated raising and lowering of a trailer automates the raising and lowering of a trailer by detachably mounting to a trailer crank, and coupling to a rotary tool that transfers torque, through the rod, to the rotatable drive shaft in the trailer crank. The device includes a rod having a male end and an opposing female end. The female end of the rod has a channel that receives and detachably fastens to a rotatable drive shaft of trailer crank. The male end comprises a geometric-shaped terminus, and projects out to engage and grip the chuck of a rotary tool. A cylindrical clamp removably encapsulates and fastens the female end of the rod with rotatable drive shaft of trailer crank. A rotary tool couples to the male end of rod to rotate, and thereby transfer torque, to the rotatable drive shaft, through the rod.

A trailer crank extension device for automated raising and lowering of a trailer automates the raising and lowering of a trailer by detachably mounting to a trailer crank, and coupling to a rotary tool that transfers torque, through the rod, to the rotatable drive shaft in the trailer crank. The device includes a rod having a male end and an opposing female end. The female end of the rod has a channel that receives and detachably fastens to a rotatable drive shaft of trailer crank. The male end comprises a geometric-shaped terminus, and projects out to engage and grip the chuck of a rotary tool. A cylindrical clamp removably encapsulates and fastens the female end of the rod with rotatable drive shaft of trailer crank. A rotary tool couples to the male end of rod to rotate, and thereby transfer torque, to the rotatable drive shaft, through the rod.

A landing gear system including a landing gear actuator assembly arranged to selectably provide an increased torque output to a cross-shaft adaptor rotationally coupled to a cross-shaft of a trailer landing gear assembly. A rotational engagement mechanism is arranged to, in response to a remote signal, shift a rotational engagement mechanism to selectably couple the cross-shaft adaptor with a light gear set or selectably couple the cross-shaft adaptor with a heavy gear set. The landing gear actuator includes a slip-clutch assembly to dampen, reduce, or eliminate rotational shock caused when retracting or extending the legs of the landing gear system.