An amount of decrease ΔC in an axial clearance of a hub unit bearing is found based on an amount of expansion ΔD of an inner ring of the hub unit bearing, which is the difference between the outer-diameter dimension D1 of the inner ring after the inner ring is externally fitted with a tubular fitting portion of a hub spindle of the hub unit bearing and after formation of a swaged portion of the hub spindle, the inner ring being held between the swaged portion and a stepped surface of the hub spindle, and an outer-diameter dimension D0 of the inner ring before the inner ring is externally fitted with the tubular fitting portion.

A drive train for an electric machine is provided. The drive train includes a shaft. The shaft has a front end and a rear end and which is supported in a housing via a front bearing and a rear bearing, wherein the front bearing including a front bearing outer ring and a front bearing inner ring, and the rear bearing including a rear bearing outer ring and a rear bearing inner ring). The drive train includes a first cover mounted to the housing and being configured to seal a rear side of the front bearing, wherein the first cover is mounted to the housing by an auxiliary support which connects the first cover to the housing, a second cover mounted to the housing and being configured to seal a front side of the rear bearing, a third cover mounted to the housing and being configured to seal the rear bearing.

A bearing assembly (100) for supporting a steering shaft within a steering column tube including an outer bearing ring (120) defining an outer raceway (122), an inner bearing ring (130) defining an inner raceway (132), a plurality of roller elements (154) disposed between the inner raceway and the outer raceway, a support cone (160) defining an inner face and an outer surface, the support cone being disposed radially inwardly of, and in contact with, the inner bearing ring, and a biasing element (180) disposed adjacent the inner surface of the support cone. The biasing element exerts force radially-outwardly against the inner surface of the support cone.

A temperature compensation ring configured to compensate for changes in a temperature-dependent distance between two components includes a base body made from an elastic material and a first reinforcing body and a second reinforcing body, each of the first and second reinforcing bodies including a harder material than the material of the base body. The first and second reinforcing bodies are disposed at opposite end surfaces of the base body and partially define an outer periphery of the temperature compensation ring.

A temperature compensation ring configured to compensate for changes in a temperature-dependent distance between two components includes a base body made from an elastic material and a first reinforcing body and a second reinforcing body, each of the first and second reinforcing bodies including a harder material than the material of the base body. The first and second reinforcing bodies are disposed at opposite end surfaces of the base body and partially define an outer periphery of the temperature compensation ring.

An electric drive unit and method of assembling the same is disclosed. The electric drive unit includes a rotor having a rotor shaft, and gear shaft, where the rotor shaft is inserted into the gear shaft. The gear shaft is supported by two bearings, while the rotor shaft supported directly at one end by a bearing and at the other by the gear shaft. A wave spring is also disclosed that provides an axial loading to the rotor shaft. Also disclosed is a balancing ring secured to an end of the rotor via a locknut. The balancing ring can be machined in order to balance the rotor. The rotor shaft can be connected to the gear shaft via a spline connection. The rotor shaft can bear against the gear shaft via a pilot journal and pilot bore defined on the rotor shaft and gear shaft respectively.

An assembly includes a first structure, a first bearing assembly, and a second structure. The first structure has a first predetermined stiffness, and the first bearing assembly is mounted on the first structure. The second structure, which has a second predetermined stiffness, is mounted on the first bearing assembly, whereby relative motion about a first rotational axis is allowed between the first and second structure. At least one of the first structure and the second structure distort when a force is supplied thereto along the first rotational axis, and the distortion of at least one of the first structure and the second structure imparts a first preload force on the first bearing assembly.

Load sharing stacked bearing structure including first bearing having a first inner race, first outer race and first set of roller elements housed between first inner race and first outer race and a second bearing having a second inner race, second outer race and second set of roller elements housed between second inner race and the second outer race. A housing surrounds the first and second bearings. First compliant element is provided with the first compliant element connected between the housing and the first outer race. The first compliant element, first outer race and housing define at a pressure chamber. The first outer race axially slidable relative to the second outer race such that an increase in pressure in pressure chamber causes a change in axial spacing between the outer races. This induces an additional axial load on the bearings which helps balance thrust load sharing.

Load sharing stacked bearing structure including first bearing having a first inner race, first outer race and first set of roller elements housed between first inner race and first outer race and a second bearing having a second inner race, second outer race and second set of roller elements housed between second inner race and the second outer race. A housing surrounds the first and second bearings. First compliant element is provided with the first compliant element connected between the housing and the first outer race. The first compliant element, first outer race and housing define at a pressure chamber. The first outer race axially slidable relative to the second outer race such that an increase in pressure in pressure chamber causes a change in axial spacing between the outer races. This induces an additional axial load on the bearings which helps balance thrust load sharing.

A bearing assembly includes a bearing defining a bearing bore therethrough with a plurality of spring bores circumferentially distributed around the bearing bore. A respective spring is seated in each of the spring bores. Each spring is has a flared end that is larger in diameter than a main section of the spring. The flared end of each spring engages its respective spring bore.