Method for producing track ring member, method for producing rolling bearing, method for producing hub unit bearing, and method for producing vehicle
AssigneeNsk Ltd.
InventorHidekazu SUZUKI
Life of this patent
Estimating the term…
Abstract
A centerless grinding processing in which a sliding contact surface (10) is subjected to grinding by pressing a grindstone against the sliding contact surface (10) of an inner ring (3) while rotating the inner ring (3) relative to the grindstone in a prescribed direction, and then, in the centerless grinding process, a finishing step in which grinding lines in a direction intersecting grinding lines formed on the sliding contact surface (10) are formed on the sliding contact surface (10) and/or processing for improving the surface roughness of the sliding contact surface (10) is performed is performed.
Claims9
A method for producing a rolling bearing using centerless grinding, in which the rolling bearing has an inner ring, an outer ring, a plurality of rolling elements, a seal lip, and a sliding contact surface which is provided on the inner ring or the outer ring and with which a distal end of the seal lip is in contact in a slidable manner, the method comprising:
- subjecting the sliding contact surface to centerless grinding while pressing a grindstone against a portion of the inner ring or the outer ring including the sliding contact surface;
- and
- subjecting the sliding contact surface to a process for eliminating directivity of surface roughness generated on the sliding contact surface using centerless grinding.
A method for producing a track ring member having a sliding contact surface with which a distal end portion of a seal lip is in contact in a slidable manner over the entire circumference, the method comprising:
- performing a centerless grinding process in which the sliding contact surface is subjected to grinding by pressing a grindstone against the sliding contact surface while rotating the track ring member relative to the grindstone in a prescribed direction, and then
- performing a finishing step in which a large number of grinding lines in irregular directions are formed on the sliding contact surface and/or processing for improving surface roughness of the sliding contact surface is performed.
A method for producing a hub unit bearing using centerless grinding in which the hub unit bearing has an outer ring, a hub, a plurality of rolling elements, a seal lip, and a sliding contact surface which is provided on the outer ring or the hub and with which a distal end of the seal lip is in contact in a slidable manner, the method comprising:
- subjecting the sliding contact surface to the centerless grinding while pressing a grindstone against a portion of the outer ring or the hub including the sliding contact surface;
- and
- subjecting the sliding contact surface to a process for eliminating directivity of surface roughness generated on the sliding contact surface using centerless grinding.
Dependencies are inferred from the claim text.