To provide a rolling bearing device having a long lifetime, assuring less lubricant consumption, and hard to generate lubricant shortage in the high-speed rotation of an inner raceway member which requires lubricant large consumption.
In an interference fit, an inner ring 3 is fitted to a rotary shaft 2 and fastened, and the rotary shaft 2 is provided with a lubricant storage chamber 71, while passages 72 and 33 extending approximately in the radial direction are formed between the chamber 71 and the peripheral surface of the inner ring 3. The passages 72 and 33 are provided with parts having different cross-section areas, and each part with a larger cross-section area in the passages 72 and 33 is located outside in the radial direction of a part with a smaller cross-section area in the passages 72 and 33. A ball 50 is installed in each part with a larger section area in the passages 72 and 33, and one end of a spiral spring is connected with the ball 50 while the other end of the spiral spring is fixed to the inner surface of the storage chamber 71.
| JPH1162992 | BEARING UNIT |
| JP2008138707 | THRUST ROLLING BEARING |
| JP5821178 | Bearing spacer |
| JPS646415Y2 | 1989-02-20 | |||
| JPS5160861A | 1976-05-27 | |||
| JPH1058278A | 1998-03-03 | |||
| JP2001099166A | 2001-04-10 | |||
| JPS646415Y2 | 1989-02-20 | |||
| JPS5160861A | 1976-05-27 |
Mitsuo Tanaka
Yukinori Nakakura
Next Patent: CYLINDRICAL ROLLER BEARING DEVICE