A caster brake device includes a brake gear, receiving unit, driving unit, elastic element and operating unit connected to the driving unit. The brake gear is disposed at an axle or wheel of a mobile carrier. Stop slots are disposed at the brake gear circumferentially. The receiving unit has a penetrating recess corresponding in position to the stop slots. The driving unit is disposed in the receiving unit and includes a penetrating portion corresponding in position to the penetrating recess and a stop spindle penetrating the penetrating recess and the penetrating portion. Two ends of the stop spindle correspond in position to the stop slots and thus are movably confined to the penetrating recess to enter or exit the stop slots. The elastic element has two ends abutting against the receiving unit and driving unit, respectively, to enable the stop spindle to undergo reciprocating motion within the penetrating recess.

A mobile component having a roller bearing unit, in particular a mobile component having a steering roller, a roller, in particular a drive roller, being rotationally braced in a pivot unit, which is supported via a pivot bearing on the frame of the mobile component, the axes of rotation of the two pivot bearings in particular being aligned perpendicularly with respect to each other, the axis of rotation of the pivot bearing for pivoting parallel to the direction of the normal of the normal of the driving surface of the mobile component touched by the roller, a drum brake being developed on the roller, the actuation of the drum brake being able to be brought about by an electromagnet, which is connected on the frame of the mobile component, the drum brake being able to be actuated by the electromagnet via a wedge gear.

A specialized dolly is provided that works with a hydraulic floor jack; together the assembly performs the lifting and moving of vehicles with ease and efficiency. The configuration and design of the dolly enables a standard hydraulic floor jack to be positioned within a frame of the dolly in a stationary position. A handle of a hydraulic floor jack can then be used to maneuver the combination dolly/floor jack assembly with ease on the floor of the repair shop. The dolly may be designed and configured to have stationary low resistance front rear wheel assemblies, both of which provide for convenient maneuvering and steering. The dolly's wheel tracks (distance between front wheels) and its wheelbase length (distance between front and rear wheels) allows the dolly to be stable and significantly maneuverable, especially over or around potholes, slopes, and ramps, and also provides greater safety for the operating technician.

A dual wheel swivel caster includes a swivel assembly, a horn, a rig hub, a solid axle, at least one ring of roller bearings, first and second wheel assemblies, and at least one ring of bearings. The first wheel assembly has a first wheel axis, and includes an annular plate element. The torque limiter is configured to rotatably couple the first and second wheel assemblies with the solid axle when the torque between the annular plate element and the torque limiter is below a preset value. The torque limiter is configured to rotatably decouple the first wheel assembly from the solid axle and the second wheel assembly when the torque exceeds the preset value. The ring of bearings is configured to allow the first wheel assembly to rotate independently of the solid axle and the second wheel assembly about the rotational axis when the torque exceeds the preset value.

A caster wheel assembly for an industrial vehicle comprising a lower housing connected to a wheel, an upper housing connectable to the industrial vehicle, and an inner alignment post disposed within the lower and upper housings. The upper housing is at least partially disposed within the lower housing. Rotation of the inner alignment post relative to the upper housing adjusts vertical displacement of the lower housing relative to the upper housing.

A caster mounting portion has a mounting member housing portion which houses the mounting member, the mounting member has a rotary shaft portion which is pivotally supported in a bearing recessed portion in the mounting member housing portion, an abutment body in which the rotary shaft portion is provided at an eccentric position and which is displaced by rotation to be widened to close the inside of the mounting member housing portion, an upper locking piece which engages with a locking receiving portion of an opposed wall, a lower locking piece which abuts against the bottom face of a latching portion, and a locking stepped portion which is urged by a leading end of an elastic arm, climbing over the aforementioned latching portion, and engages with the latching portion.

A wheel for a single or double caster for furniture or hospital beds or medical equipment, the wheel comprising: a rim; a tire; and a wheel bearing centrally arranged in the rim, wherein a running surface of the tire envelops the rim, and wherein the running surface of the tire includes a plurality of bonded spokes which are at least in contact the wheel bearing. The wheel is producible in a simple manner with short cycle times while having good thermal conductivity.

A dual wheel swivel caster includes a swivel assembly, a horn, a rig hub, a solid axle, at least one ring of roller bearings, first and second wheel assemblies, and at least one ring of bearings. The first wheel assembly has a first wheel axis, and includes an annular plate element. The torque limiter is configured to rotatably couple the first and second wheel assemblies with the solid axle when the torque between the annular plate element and the torque limiter is below a preset value. The torque limiter is configured to rotatably decouple the first wheel assembly from the solid axle and the second wheel assembly when the torque exceeds the preset value. The ring of bearings is configured to allow the first wheel assembly to rotate independently of the solid axle and the second wheel assembly about the rotational axis when the torque exceeds the preset value.

A trailer for a motor vehicle includes a bed, a trailer tongue, a tongue frame, and a plurality of swivel frames. The bed has a front end and a rear end, and is configured to receive a load to be transported by the trailer. The trailer tongue is configured to be rigidly coupled to a hitch, wherein the hitch is rigidly affixed to a motor vehicle. The tongue frame operable couples the trailer tongue to the bed proximate the front end in a laterally rigid manner, such that the bed is substantially inhibited from lateral movement with respect to the hitch. Each of the plurality of swivel frames is operably rotatably coupled to the bed, and includes at least one wheel rotatably attached thereto.

A wheel mechanism (10) is disclosed as including an outer wheel (12), two inner wheels (36) received in the outer wheel, and two rubber dampers (24) each separating a respective outer wheel and inner wheel, the rubber dampers being deformable between a first configuration in which the entire outer periphery (37) of the inner wheel is in contact with an inner wall (29) of a recess (28) of the rubber damper and a second configuration in which a part of the outer periphery of the inner wheel is out of contact with the inner wall of the recess of the rubber damper.