Rolling bearing
First Claim
1. A rolling bearing comprising:
- a pair of bearing rings arranged in an inner side and an outer side in a diametrical direction;
a cage arranged in an annular space between both the bearing rings;
a plurality of rolling elements held by the cage; and
a solid lubricating agent provided in the cage, wherein the cage has a plurality of rolling element receiving pockets in a circumferential direction, and has recess portions between the rolling element receiving pockets in the circumferential direction, each of the rolling elements is received in each of the rolling element receiving pockets, and wherein the solid lubricating agent is attached to the recess portions in such a manner as to be in a slidable contact with a rolling element raceway surface.
2 Assignments
0 Petitions
Accused Products
Abstract
In a rolling bearing including a cage arranged in an annular space between an outer ring and an inner ring, a plurality of rolling elements held by the cage, and a solid lubricating agent provided in the cage, the cage has a plurality of rolling element receiving pockets in a circumferential direction, and has recess portions between the rolling element receiving pockets in a circumferential direction, and each of the rolling elements is received in each of the rolling element receiving pockets. The solid lubricating agent is attached to the recess portions in such a manner as to be in a slidable contact with a rolling element raceway surface.
8 Citations
7 Claims
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1. A rolling bearing comprising:
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a pair of bearing rings arranged in an inner side and an outer side in a diametrical direction;
a cage arranged in an annular space between both the bearing rings;
a plurality of rolling elements held by the cage; and
a solid lubricating agent provided in the cage, wherein the cage has a plurality of rolling element receiving pockets in a circumferential direction, and has recess portions between the rolling element receiving pockets in the circumferential direction, each of the rolling elements is received in each of the rolling element receiving pockets, and wherein the solid lubricating agent is attached to the recess portions in such a manner as to be in a slidable contact with a rolling element raceway surface. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A rolling bearing comprising:
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a pair of bearing rings arranged in an inner side and an outer side in a diametrical direction with arranging an annular space between opposing surfaces in the diametrical direction;
a cage arranged in the annular space between both the bearing rings and having a plurality of rolling element receiving pockets in a circumferential direction;
a plurality of rolling elements received in the respective rolling element receiving pockets in the cage; and
a solid lubricating agent provided in the cage, wherein one bearing ring of both the bearing rings has a groove portion forming a raceway surface of the rolling element on an opposing surface to another bearing ring, and a shoulder portion for holding the rolling element in both sides of the groove portion in an axial direction, wherein the cage has recess portions between the rolling element receiving pockets, and the recess portion has a bottom surface and a pair of inclined surfaces inclined in such a manner as to be expanded from both sides of the bottom portion in a circumferential direction toward an outer side in the diametrical direction, wherein the solid lubricating agent is provided with a first lubricating portion detachably fitted to the groove portion of the one bearing ring, and a second lubricating portion bulged out to both sides of the first lubricating portion in the axial direction so as to be loosely fitted to the recess portion, and both the lubricating portions has a back surface in a downstream side of the one bearing ring in a rotational direction, and wherein the solid lubricating agent is attached to the recess portions in a state, in which the back surface is opposed to the inclined surface of the recess portion with keeping a clearance.
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Specification