| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sealed rolling bearing having small rotation torque and an excellent dust prevention property. <P>SOLUTION: This sealed rolling bearing is composed of an inner ring forming a raceway surface in an outer peripheral part, an outer ring forming a raceway surface in an inner peripheral part, a rolling body fitted between the raceway surface of the inner ring and the raceway surface of the outer ring, a holder holding the rolling body, and a pair of annular shields provided at an interval of the inner ring and the outer ring across the rolling body. The shield has an outer fringe fixed to the inner peripheral part of the outer ring and has a face opposing the outer peripheral face of the inner ring in an inner fringe. A channel in the peripheral direction is formed on an outer peripheral face opposing the face of the inner ring. A fringe on a rolling body side of the channel is arranged on the rolling body side of the end of the inner peripheral face opposing a channel of the holder in the axial direction. Grease is filled into a space between the inner peripheral face of the outer ring and the outer peripheral face of the inner ring between the pair of shields. When the bearing rotates, grease for lubrication intrudes into the channel to form a grease shield between the face and it. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
