JP2009236314A5 - - Google Patents

Claims (15)

A ball bearing having a cage pocket to put the ball are formed,
Lubricating components made of a solid lubricant, ball bearings, characterized in that arranged on the retainer so as to contact with the ball surface during the rotation of this bearing. The ball bearing according to claim 1, wherein the lubricating component is disposed in a recess provided in a column portion between the pockets. 3. The ball bearing according to claim 2, wherein the lubrication component has a cylindrical shape, and the recess is formed in an arc shape corresponding to a cylinder forming the lubrication component . The ball bearing according to claim 2, wherein the lubricating component is disposed in the recess so as to contact the raceway when the bearing rotates . 5. The arrangement according to claim 4, wherein when the bearing is rotated, the circumferential surface of the cylinder forming the lubrication component is in contact with the raceway and the axial end surface of the cylinder is in contact with the ball . Ball bearing. The ball bearing according to claim 4, wherein the concave portion is formed at a position along a line of action of a resultant force transmitted from the raceway to the ball . The ball bearing according to claim 6, wherein the concave portion is formed in a pair at a position along the action line . The ball bearing is an angular ball bearing,
The cage is a ring-shaped cage in which a circular hole penetrating the circumferential surface of the ring is formed, and along the line of action of the resultant force of the force transmitted from the race to the ball of the pillar portion of the cage. The ball bearing according to claim 1, wherein the lubricating component is disposed at a position .   The ball bearing according to claim 8, wherein the circular hole has a tapered portion, and an inner ring side portion having a smaller diameter than the ball is formed in the pocket.   The ball bearing according to claim 9, wherein the tapered portion is formed at two locations facing each other in a radial direction of the circular hole.   The retainer is a ring-shaped retainer in which a circular hole penetrating the circumferential surface of the ring is formed, and the lubricating component is attached to a pillar portion of the retainer so as to protrude from a pocket surface. The ball bearing according to Item 1.   The ball bearing according to claim 1, wherein the retainer is a separate retainer including a plurality of independent separators, wherein a circular hole is formed in each separator, and the lubricating component is attached to the separator.   The retainer is a ring-shaped retainer in which a circular hole penetrating the peripheral surface of the ring is formed, and a cylindrical recess that is recessed along the width direction of the ring is formed in a pillar portion of the retainer, The circumferential surface of the cylinder forming this recess has an opening in the pocket surface,
  2. The ball bearing according to claim 1, wherein the lubricating component is disposed in the recess, is rotatable in the recess, and is formed in a shape and size such that a part protrudes from the opening during rotation.   The cage is a ring-shaped cage in which a circular hole penetrating the circumferential surface of the ring is formed, and a through-hole through which a pillar portion of the cage penetrates in a direction inclined with respect to a tangent to a ball pitch circle is provided. The ball bearing according to claim 1, wherein the lubricating component is mounted in the through hole so as to be movable in the inclined direction.   The retainer is a ring-shaped retainer in which a circular hole penetrating the circumferential surface of the ring is formed, and the lubrication component is formed in a ring shape in which a ball enters, and the ring-shaped lubrication component is a retainer The ball bearing according to claim 1, wherein the ball bearing is disposed in a recess formed in an inner surface of the pocket.