A method of manufacturing a wheel hub bearing unit includes providing a bearing ring having at least one raceway surface, the bearing ring preferably being a bearing outer ring which is preferably formed of a steel having a carbon content of between about 0.55% by weight and 0.60% by weight. The bearing ring is carbonitrided within a furnace having an enclosed atmosphere containing ammonia gas. The bearing ring is then tempered by heating the ring to at least five hundred degrees Celsius (500° F.). Next, the induction hardening the at least one raceway surface of the ring is induction hardened, preferably by means of special inductor coil. Finally, the raceway surface(s) of the ring is machined to desired final dimensions and surface finish.

A bicycle rim basically includes a first annular side surface portion, a second annular side surface portion, an annular connecting portion and an outermost layer. The first annular side surface portion includes a first braking surface. The second annular side surface portion includes a second braking surface. The epoxy resin layer is an example of a nonmetallic layer. The annular connecting portion connects the first and second annular side surface portions. The soft additive granules are disposed in at least one of the first and second annular side surface portions. The epoxy resin layer is disposed in at least one of the first and second annular side surface portions. The soft additive granules are at least partially embedded in the epoxy resin layer. The outermost layer covers the epoxy resin layer and the soft additive granules.

A wheel bearing apparatus has a double row angular contact ball bearing. A height of a shoulder of a shoulder portion (18) of an outer member (12) with respect to a ball diameter of a double ball (14) row is set in a range of 0.35 to 0.50 mm. A corner (19) of the shoulder portion (18) has a relief surface (19a) and a chamfered portion (19b). The relief surface is on a straight line that is on a tangent line of an outer raceway surface (12a). The chamfered portion (19b) is round in a circular arc with a predetermined radius of curvature r. The corner (19) is formed simultaneously by a formed grinding wheel forming the double row outer raceway surface (12a). The corner is formed smoothly continuous from each outer raceway surface (12a). A length in the radial direction of the relief surface (19a) is set greater than or equal to 0.2 mm.

The present invention is directed to a method for manufacturing a corrosion resistant wheel adapted for securement to a vehicle and/or trailer, including the steps of: providing a wheel body, mechanically abrading and/or chemically etching at least one surface of the wheel body, applying a primary anticorrosion composition, forming a primary anticorrosion layer, applying a secondary anticorrosion composition, and forming a secondary anticorrosion layer, applying a tertiary anticorrosion composition, and forming a tertiary anticorrosion layer.

A corrosion resistant wheel including a body having an outer surface and an inner surface, and a mounting plate having a front surface and a rear surface, wherein the body is adapted for securement to a vehicle and/or trailer, a primary anticorrosion layer associated with at least one of the inner and outer surfaces of the wheel body and/or at least one of the front and rear surfaces of the mounting plate, an optional secondary layer associated with the primary anticorrosion layer, and a tertiary layer associated with the secondary layer.

Disclosed is a device for removing burrs from an aluminum alloy hub. The device includes a workbench, columns, a brush, a spindle, a spindle box, a cross beam, a spindle motor, a controller, a parallel robot, and a displacement sensor. Columns are fixedly connected to the workbench, and the cross beam is connected to the columns and a position of the cross beam can be adjusted along the columns; the spindle box is connected to the cross beam, and moves horizontally on the cross beam; the spindle, the spindle motor and the controller are mounted on the spindle box, and the brush is mounted at the end of the spindle; the brush is driven to rotate by the spindle motor and controlled by the controller; and the displacement sensor is mounted in the brush. The parallel robot can implement precise adjustment, and can perform real-time posture adjustment according to the instruction of the controller to ensure that the brush is always in close contact with the back cavity of the hub.

The present invention discloses a device for removal of wheel rim burr which comprises a main body, plural positioning wheels, an eccentric wheel disposed on the main body, and at least two brush wheels disposed between two corresponding positioning wheels.

The present invention discloses a device for removal of wheel rim burr which comprises a main body, plural positioning wheels, an eccentric wheel disposed on the main body, and at least two brush wheels disposed between two corresponding positioning wheels.

The present invention provides an apparatus and a method for manufacturing a wheel hub to reduce lateral run-out. Specifically, the present invention provides an apparatus and a method for machining the inner and outer surfaces of the wheel hub after the wheel bolts and bearing have been attached to the wheel hub. A grind wheel is used to finish an inner flange portion and outer flange portion of the wheel hub.

The present invention is directed to a method for manufacturing a corrosion resistant wheel adapted for securement to a vehicle and/or trailer, including the steps of: providing a wheel body, applying a primary anticorrosion composition, and forming a primary anticorrosion layer.