Wheel assemblies and strollers comprising wheel assemblies are provided. The wheel assembly can comprise a standard wheel and a modular wheel, where the standard wheel has a first diameter that is greater than the diameter of the modular wheel. The modular wheel can be fixedly or removably attached to the standard wheel. The stroller can comprise at least one rear wheel assembly located proximate to a rear of the base. The stroller can also comprise at last one front wheel assembly located proximate to a front of the base. The stroller can also comprise a pulling and/or steering mechanism.

A heavy goods vehicle (10) having a vehicle frame (12) and at least one driving axis (A), which has on either longitudinal side (10a) of the vehicle (10) a bogie (22) comprising a wheel assembly (14), each wheel assembly (14) comprising at least two wheels arranged symmetrically in relation to a central axis (S), and a wheel suspension (18) by means of which said wheel assembly is fastened to a rotary plate (28) of the bogie (22), this rotary plate (28) being mounted on a rotary bearing (24) of the bogie (22) which is engaged with the vehicle frame (12) so as to be rotatable about a steering swivel axis (X). According to the invention, the rotary bearing (24) of the bogie (22) can be adjusted in the width direction (B) of the vehicle relative to the vehicle frame (12) and can be detachably connected to the vehicle frame (12) in an operationally stable manner.

The Dual Tire Shield of the invention mounts between dual tires and helps to prevent debris from getting into the gap between dual tires and/or damaging the tires when it does so. In some embodiments it can also serve as a runflat for dual tires. Debris can become wedged between the sidewalls of dual tires that face each other, or inner sidewalls of such tires. The dual tire shield prevents debris from getting stuck between the inner sidewalls of the dual tires and thereby prevents flats caused by sidewall puncture or bead de-seating due to such debris. The device accomplishes this by: Blocking debris from entering the gap between duals and/or prevent debris from being wedged in the gap; keeping such debris from contact with one or both of the tires even if wedged therebetween; and/or ejecting debris from between the tires. Further, the dual tire shield may be made rigid enough and/or include rigid portions so as to act as a runflat in case a tire goes flat regardless of the reason.

The Dual Tire Shield of the invention mounts between dual tires and helps to prevent debris from getting into the gap between dual tires and/or damaging the tires when it does so. In some embodiments it can also serve as a runflat for dual tires. Debris can become wedged between the sidewalls of dual tires that face each other, or inner sidewalls of such tires. The dual tire shield prevents debris from getting stuck between the inner sidewalls of the dual tires and thereby prevents flats caused by sidewall puncture or bead de-seating due to such debris. The device accomplishes this by: Blocking debris from entering the gap between duals and/or prevent debris from being wedged in the gap; keeping such debris from contact with one or both of the tires even if wedged therebetween; and/or ejecting debris from between the tires. Further, the dual tire shield may be made rigid enough and/or include rigid portions so as to act as a runflat in case a tire goes flat regardless of the reason.

A suspended undercarriage assembly connectable to a multi-member frame assembly of a track system includes a beam having a leading portion and a trailing portion, at least one support wheel assembly connectable to the beam, at least one of a leading resilient bushing assembly and a trailing resilient bushing assembly including a bushing having an opening defined therein and being shaped and dimensioned for promoting deformation of the bushing in at least one of a vertical direction and a lateral direction. The bushing is resiliently deformable to permit movement of the beam relative to the multi-member frame assembly in the vertical direction and in the lateral direction, and to resiliently bias the beam towards a rest position with respect to the multi-member frame assembly. A track system having the suspended undercarriage assembly is also provided.

This invention relates generally to wheel assemblies for a material handling vehicle, such as forklifts and pallet trucks, and the components therein. In one preferred embodiment, the wheel assemblies include conductive brush spacer assembly with tunable properties (conductivity/resistance, as well as mechanical properties) to adapt the brush spacer assembly. Embodiments of the present application may be used in various wheel assemblies, as discussed herein.

This invention relates generally to wheel assemblies for a material handling vehicle, such as forklifts and pallet trucks, and the components therein. In one preferred embodiment, the wheel assemblies include conductive brush spacer assembly with tunable properties (conductivity/resistance, as well as mechanical properties) to adapt the brush spacer assembly. Embodiments of the present application may be used in various wheel assemblies, as discussed herein.