Rolling bearing
First Claim
Patent Images
1. A rolling bearing, comprising:
- an inner bearing ring;
an outer bearing ring disposed radially outward of said inner bearing ring;
a cage arranged in an annular space between said inner and outer bearing rings, said cage including rolling element receiving pockets arranged in a circumferential direction, and further including recess portions between the rolling element receiving pockets in the circumferential direction;
rolling elements which are received in the rolling element receiving pockets; and
at least one integrally formed solid lubricating agent which is at least partially received in the recess portions so as to captively move along with the cage and be in slidable contact with a rolling element raceway surface of one of said inner and outer bearing rings facing said cage.
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.
16 Citations
7 Claims
-
1. A rolling bearing, comprising:
-
an inner bearing ring; an outer bearing ring disposed radially outward of said inner bearing ring; a cage arranged in an annular space between said inner and outer bearing rings, said cage including rolling element receiving pockets arranged in a circumferential direction, and further including recess portions between the rolling element receiving pockets in the circumferential direction; rolling elements which are received in the rolling element receiving pockets; and at least one integrally formed solid lubricating agent which is at least partially received in the recess portions so as to captively move along with the cage and be in slidable contact with a rolling element raceway surface of one of said inner and outer bearing rings facing said cage. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A rolling bearing, comprising:
-
an inner bearing ring; an outer bearing ring disposed radially outward of said inner bearing ring forming an annular space therebetween; a cage arranged in the annular space between said inner and outer bearing rings, said cage having a plurality of rolling element receiving pockets arranged in a circumferential direction, said cage further including recess portions disposed between the rolling element receiving pockets in the circumferential direction, the recess portions each having a bottom surface and a pair of inclined surfaces inclined so as to be expanded from both sides of the bottom portion in a circumferential direction and radially outward; a plurality of rolling elements received in the rolling element receiving pockets in the cage; and at least one integrally formed solid lubricating agent being at least partially received in the recess portions in a state in which a back surface thereof is opposed to the inclined surface of the recess portion with a clearance therebetween, said at least one integrally formed solid lubricant including 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 when at least partially received therein, a one of said inner and outer bearing rings including a groove portion forming a raceway surface of the rolling element on an opposing surface to another one of said inner and outer bearing rings, and a shoulder portion for holding the rolling element in both sides of the groove portion in an axial direction, both of said first and second lubricating portions having a back surface in a downstream side of said one of said bearing rings in a rotational direction.
-
Specification