An axle assembly for a vehicle including a differential assembly, a first axle tube extending outwardly from a first side of the differential assembly and defining an axle bore, a first axle shaft rotatably received in the first axle tube, and defining an annular groove extending radially inwardly from its outer surface, a retainer nut axially fixed to a distal end of the first axle tube, the retainer nut having an annular flange extending inwardly into the axle bore and defining an annular outer raceway, a snap ring received in the annular groove, and an axial thrust component disposed in the axle bore of the first axle tube between the snap ring and the outer raceway of the retainer nut.

An axle assembly of a vehicle including a differential assembly, a first axle tube including a proximal end adjacent the differential assembly, an opposite distal end, and an axle bore extending therebetween, a first axle shaft rotatably received in the first axle tube, the first axle shaft including a proximal end disposed in the differential assembly, and an opposite distal end extending outwardly from the distal end of the first axle shaft, and a radial bearing assembly including an inner cup, an outer cup and a plurality of roller elements rotatably received therebetween, the outer cup being axially fixed within the axle bore of the first axle tube and the inner cup being axially fixed to the first axle shaft.

An axle assembly of a vehicle including a differential assembly, a first axle tube including a proximal end adjacent the differential assembly, an opposite distal end, and an axle bore extending therebetween, a first axle shaft rotatably received in the first axle tube, the first axle shaft including a proximal end disposed in the differential assembly, and an opposite distal end extending outwardly from the distal end of the first axle shaft, and a radial bearing assembly including an inner cup, an outer cup and a plurality of roller elements rotatably received therebetween, the outer cup being axially fixed within the axle bore of the first axle tube and the inner cup being axially fixed to the first axle shaft.

An axle assembly for a vehicle including a differential assembly, a first axle tube extending outwardly from a first side of the differential assembly and defining an axle bore, a first axle shaft rotatably received in the first axle tube, and defining an annular groove extending radially inwardly from its outer surface, a retainer nut axially fixed to a distal end of the first axle tube, the retainer nut having an annular flange extending inwardly into the axle bore and defining an annular outer raceway, a snap ring received in the annular groove, and an axial thrust component disposed in the axle bore of the first axle tube between the snap ring and the outer raceway of the retainer nut.

There is provided a spring-powered drive apparatus including a casing (102), an output shaft (103) mounted on the casing (102) in a relatively rotatable manner, a one way clutch (112) externally fitted on the output shaft (103) in the casing (102) and, a spiral spring (105, 107) housed in the casing and wound by turning of the output shaft (103) in the direction in which the one way clutch (112) transmits torque. Thus, there can be provided a compact spring-powered drive apparatus and a self-propelled caster that can be applied to a work cart or the like.

An axle assembly for a vehicle including a differential assembly, a first axle tube extending outwardly from a first side of the differential assembly and defining an axle bore, a first axle shaft rotatably received in the first axle tube, and defining an annular groove extending radially inwardly from its outer surface, a retainer nut axially fixed to a distal end of the first axle tube, the retainer nut having an annular flange extending inwardly into the axle bore and defining an annular outer raceway, a snap ring received in the annular groove, and an axial thrust component disposed in the axle bore of the first axle tube between the snap ring and the outer raceway of the retainer nut.

An axle assembly for a vehicle including a differential assembly, a first axle tube extending outwardly from a first side of the differential assembly and defining an axle bore, a first axle shaft rotatably received in the first axle tube, and defining an annular groove extending radially inwardly from its outer surface, a retainer nut axially fixed to a distal end of the first axle tube, the retainer nut having an annular flange extending inwardly into the axle bore and defining an annular outer raceway, a snap ring received in the annular groove, and an axial thrust component disposed in the axle bore of the first axle tube between the snap ring and the outer raceway of the retainer nut.

An axle assembly of a vehicle including a differential assembly, an axle tube extending outwardly from a first side of the differential assembly and defining an axle bore, an axle shaft rotatably received in the first axle tube and defining an annular groove extending radially inwardly from its outer surface, a retaining nut axially fixed to the distal end of the first axle tube, and a snap ring received in the annular groove of the first axle shaft, wherein the snap ring abuts the retaining nut, thereby preventing outward motion of the first axle shaft with respect to the first axle tube.

There is provided a spring-powered drive apparatus including a casing (102), an output shaft (103) mounted on the casing (102) in a relatively rotatable manner, a one way clutch (112) externally fitted on the output shaft (103) in the casing (102) and, a spiral spring (105, 107) housed in the casing and wound by turning of the output shaft (103) in the direction in which the one way clutch (112) transmits torque. Thus, there can be provided a compact spring-powered drive apparatus and a self-propelled caster that can be applied to a work cart or the like.

An axle device for a motor vehicle includes an axle shaft, a wheel receiving unit fixed on an end of the axle shaft, and a support body on which the wheel receiving unit is supported from rotation fixed about an axis of rotation. A bearing unit is arranged between the support body and the wheel receiving unit. The bearing unit includes an inner bearing shell at least partially formed by a surface portion of the wheel receiving unit, an outer bearing shell at least partially formed by a sleeve body abutting the support body, and a bearing assembly arranged between the inner bearing shell and the outer bearing shell.