Provided are an oil receiver (20) having an annular recess portion (52) which faces an entire circumference of an outer circumferential edge of a concave spherical portion (36), and a guide member (21) which guides lubricating oil, which has flowed out from a spherical engagement portion between a convex spherical portion (24) and a concave spherical portion (36), toward an annular recess portion (52).

Provided are an oil pan (20) which has an annular recess portion (52) facing an outer circumferential edge of a spherical concave portion (36) throughout a whole circumference; and a cover (21) which is constituted in a tubular shape, of which one axial end portion is rotatably supported by a part adjacent to a radially inner side of the annular recess portion (52), and of which an axially opposite end portion is rotatably supported by a part of a shaft-equipped spherical seat (18) on the one axial end side.

A hub main body (13z) is supported by a support portion (18). At least one block (22) is engaged with a stationary flange (6) of an outer ring (2). As a support plate (21) rotates, the outer ring (2) rotates. A caulking portion (16) is formed by pressing a pressing die (20) on a cylindrical portion (31).

A manufacturing device manufactures a bearing unit including an inner ring member outwardly fitted onto an end portion of a shaft main body of an inner shaft on one side in an axial direction and fixed by a swaged portion extending from the end portion. The manufacturing device includes: a rotating mechanism including a rotor which holds the other side of the inner shaft in the axial direction from below and rotates the inner shaft about a center axis of the inner shaft while the center axis is aligned with an up-down direction, the rotor being mounted below a processing area of the bearing unit; and a swaging mechanism mounted above the processing area and including a punch which is brought into contact with the swaged portion to plastically deform the swaged portion.

A spline-processing method is used for a wheel bearing. The wheel bearing includes outer and inner members. The inner member has formed on its inner periphery an interference-defined spline having a guide spline formed at an inboard-side end portion thereof. An intermediate component of the inner member includes a spline-formation inner peripheral surface having the interference-defined spline and the guide spline formed thereon, and a relief portion, which is formed on an outboard side with respect to the spline-formation inner peripheral surface, and has a diameter larger than that of the spline-formation inner peripheral surface. A punch used for the spline processing includes an integrated spline punch having an interference-defined spline forming surface to form the interference-defined spline, and a guide spline forming surface to form the guide spline. The integrated spline punch presses the spline-formation inner peripheral surface to form the interference-defined spline and the guide spline.

A method is provided for producing an angular bearing cage from a sleeve-like blank. In order to significantly reduce the manufacturing costs compared to known solutions even for small series, the method comprises the following steps of: Step A: providing a sleeve-like blank extending along an axis. Step B: rolling a wall section to be formed of the blank while changing the angle of the wall section to be formed relative to the axis of the blank. Step C: introducing rolling element pockets into the rolled wall section. A corresponding device and a correspondingly produced rolling bearing cage or angular bearing cage are also provided.

An application position of a processing force directed radially outward is continuously changed in the circumferential direction of a cylindrical portion (25) while applying the processing force to a part of the cylindrical portion (25) of a hub main body (21) in the circumferential direction. An application position of a processing force directed radially inward is continuously changed in the circumferential direction of a staking portion intermediary body (41) while applying the processing force to a part of the staking portion intermediary body (41) in the circumferential direction.

An application position of a processing force directed radially outward is continuously changed in the circumferential direction of a cylindrical portion (25) while applying the processing force to a part of the cylindrical portion (25) of a hub main body (21) in the circumferential direction. An application position of a processing force directed radially inward is continuously changed in the circumferential direction of a staking portion intermediary body (41) while applying the processing force to a part of the staking portion intermediary body (41) in the circumferential direction.

An application position of a processing force directed radially outward is continuously changed in the circumferential direction of a cylindrical portion (25) while applying the processing force to a part of the cylindrical portion (25) of a hub main body (21) in the circumferential direction. An application position of a processing force directed radially inward is continuously changed in the circumferential direction of a staking portion intermediary body (41) while applying the processing force to a part of the staking portion intermediary body (41) in the circumferential direction.

An application position of a processing force directed radially outward is continuously changed in the circumferential direction of a cylindrical portion (25) while applying the processing force to a part of the cylindrical portion (25) of a hub main body (21) in the circumferential direction. An application position of a processing force directed radially inward is continuously changed in the circumferential direction of a staking portion intermediary body (41) while applying the processing force to a part of the staking portion intermediary body (41) in the circumferential direction.