| 摘要 |
The bearing has the external peripheral surface of its outer ring (2), the internal peripheral surface of its inner ring (1) and the lateral surfaces of at least one of the rings covered by an injection moulded resin insulating film (4). The resin has a permanent deformation of 2 per cent under pressure, at least in heat and pressure conditions in which a pressure of 20 MPa is applied for 24 hours at 120 deg C. |
