Disclosed are systems and methods for reducing friction on a brake arm of a caster wheel brake. A washer can be positioned between the brake arm and the support arm to reduce friction in this area. Lubricant can also be provided between the brake arm and the support arm, and also between the brake arm and the brake cam, to reduce the friction in these areas. The presently disclosed embodiments therefore allow less force to actuate the brake arm as compared to prior art caster wheels.

A non-pneumatic tire (101) having a hub (201) and a compliant outer band (109) connected by connecting members (129) that are intersected by an intermediate band (120) positioned between the hub (201) and compliant outer band (109) forming a plurality of connecting element segments (331,333), each segment having a predominant curvature extending in the same longitudinal direction said direction coinciding with the preferred direction of rotation of the tire (101).

A levitating bicycle hub coupling structure using a magnet in the internal contact structure is provided. The levitating bicycle hub coupling structure in which a non-contact type structure in a levitated form is provided to reduce friction enables the position of a hub inner shaft member for transmitting the load of a user to an inner bearing part to be changed to an upper or lower preset position, and fixes the shaft member at a changed position so as to offset the load applied to the shaft member by the repulsive force of the magnets, such that the load is not applied to the bearing parts positioned at both sides of the shaft member or is significantly reduced so as to improve rolling performance, and thus riding of the bicycle becomes smoother and easier.

The present invention is intended to provide a protective cover, comprising an inner ring 12 with an inner ring track surface 12A on an outer peripheral surface; an outer ring 13 with an outer ring track surface 13A on an inner peripheral surface; a bearing with rolling elements 14 between the inner ring track surface 12A and the outer ring track surface 13A; a magnetic encoder 8 that is positioned at one axial end portion of the bearing and fixed to the inner ring 12; and a magnetic sensor that is fixed to the outer ring 13, a cup-shaped protective cover 1 press-fitted into the outer ring 13 to cover the magnetic encoder 8 and intervene between the magnetic encoder 8 and the magnetic sensor is formed by performing cold press molding of an austenitic stainless steel plate material with a nickel content of 8.5 to 13 weight %.

An aircraft hubcap/wheel cover which uses ambient airflow (120 mph-175 mph) to rotate wheels on the landing gear of an aircraft accomplished by using slightly protruding slats, blades, scoops or other air capturing shapes, (once the landing gear has been lowered). These air capturing shapes are integrated as part of the hubcap/wheel cover during manufacture and are directly determined by ground speed applicable to that aircraft with the ultimate purpose being tire longevity. The wheel cover hubcap is a single piece design and has no moving parts.

A sprag one-way clutch (OWC) used within a cassette driver of the rear hub assembly of a bicycle. The new cassette driver delivers improved performance the reduction of rotation of the crank arm required before engagement within the cassette driver when the cyclist applies force to the pedals. Additionally, the sprag clutch smooth engagement minimizes friction loss during free-wheeling, therefore increasing drivetrain efficiency. These enhancements provide both safety and performance benefits by giving the cyclist greater control in moving between pedaling and free-wheeling. The current cassette driver design utilizes a sprag OWC for engagement without any modifications to current bicycle designs. A sprag cage may be used to provide a framework to support and properly position the sprags.

The TTAssembly is a three tire and rim wheel assembly. The assembly consists of a large diameter center wheel with two identical smaller diameter wheels on the inboard and outboard sides respectively. The TTAssembly replaces the standard single rim single tire assemblies on a vehicle hub, maximizing gas mileage and the safety requirement of the vehicle. It also reduces maintenance costs and eliminates the need for a spare tire.

An electrical passenger car, the electrical passenger car comprising: at least two electrically driven motors; motor control electronics; sensors; and wheels, wherein said wheels comprise a first front wheel and a first back wheel, wherein said first back wheel has a radius at least 9% greater than a radius of said first front wheel, and wherein said motor control electronics control said at least two electrically driven motors to provide a greater torque to said front wheel than to said back wheel, or wherein said motor control electronics control said at least two electrically driven motors to provide a greater torque to said back wheel than to said front wheel.

An electrical passenger car, the electrical passenger car including: at least two electrically driven motors; motor control electronics; sensors; and wheels, where the wheels include a first front wheel and a first back wheel, where the first back wheel has a radius at least 15% greater than a radius of the first front wheel, and where the motor control electronics control the at least two electrically driven motors to provide a greater torque to the front wheel than to the back wheel, or where the motor control electronics control the at least two electrically driven motors to provide a greater torque to the back wheel than to the front wheel.

A hub built-in type constant velocity apparatus includes a hub housing with a constant velocity joint coupled inwardly, an internal race coupled to an external circumferential surface of the hub housing, and a pre-load ring coupled to the external circumferential surface of the hub housing and located on a side of the internal race, wherein an end portion of the hub housing is formed to be rolled upwards toward the pre-load ring to form a forming portion coupled to the pre-load spring for applying pressure to the pre-load ring and the internal race.