US 9,476,456 B2 · Rolling bearing

Abstract

A rolling bearing is provided wherein one open end of a bearing space formed between an outer race and an inner race is covered with a sealing ring provided with oil flow holes provided with filters. The sealing ring includes engaging portions provided on the sealing ring in a protruding manner along a circumferential direction thereof, and engaged in recesses provided on the inner race. An annular member made of a material softer than that of the sealing ring is fixed to the sealing ring. The annular member includes a lip portion facing the outer race with a gap or kept in contact with the outer race. The sealing ring is formed by injection molding a resin, and weld lines generated during the injection molding are formed in portions of the sealing ring corresponding to radial directions along which the oil flow holes are not disposed.

Claims8

Dependent claims

A rolling bearing comprising:

an outer race;
an inner race;
and rolling elements received between the outer race and the inner race;
wherein at least one end of an opening of a bearing space formed between the outer race and the inner race is covered with a sealing ring made of a resin;
wherein the sealing ring is provided with oil flow holes, and the respective oil flow holes are provided with filters configured to capture foreign substances contained in a lubricating oil;
and
wherein the sealing ring is formed by injection molding, and weld lines generated during the injection molding are formed in portions of the sealing ring corresponding to radial directions along which the oil flow holes are not disposed.

4 more elements

Dependencies are inferred from the claim text.

Rolling bearing

Life of this patent

Rolling bearing

Life of this patent

Abstract

Claims8