Sealing devices for anti-friction bearing
AssigneeNtn Corporation
InventorsTakayuki Suzuki, Hiroyuki Miyazaki
Life of this patent
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Abstract
A rolling-bearing sealing device includes: an outer ring fixed to a rotating sprocket housing; an inner ring fixed to a non-rotating motor housing; a plurality of rolling elements between the outer and the inner rings; a retainer holding the rolling elements; and an oil seal including a slinger and a seal lip and fixed to the inner ring, in which a radial lip of the oil seal is pressed against the outer ring or the sprocket housing, and in which the sprocket housing has an end face provided with a side plate fixed thereto, for sliding contact by a side lip extended axially from the oil seal.
Claims5
A rolling-bearing sealing device comprising:
- an outer ring fixed to a rotating sprocket housing;
- an inner ring fixed to a non-rotating motor housing;
- a plurality of rolling elements between the outer and the inner rings;
- a retainer holding the rolling elements;
- and
- an oil seal including a slinger and a seal lip and fixed to the inner ring;
- wherein the seal lip of the oil seal is pressed against the outer ring or the sprocket housing for sealing a bearing space between the outer and the inner rings,
- wherein the seal lip includes a side lip extended axially from the oil seal, and
- wherein the sprocket housing has an end face provided with a side plate fixed thereto, for sliding contact by the side lip extended axially from the oil seal.
Dependencies are inferred from the claim text.