Abstract: The present invention provides a rolling bearing, for a tenter clip, which is capable of restraining deterioration of a sealing member even though the sealing member contacts ester oil, and is excellent in reliability and durability at high temperatures. A periphery of an outer ring of the rolling bearing for use in the tenter clip of a film-stretching apparatus is lubricated with the ester oil.

Abstract: Problems of an acoustic trouble and a bearing lock are solved by securing a guide clearance of a plastic cage (18) of a rolling bearing (10). The plastic cage (18) is divided at a part in a circumferential direction to provide an opening section (20). The circumferential length of the opening section (20) is set to the sum total of an extension by temperature variation, an extension by variation in water absorption, and a circumferential length for securing the guide clearance.

Abstract: A rolling bearing (100) is provided with a dynamic damper (60). A natural frequency of the dynamic damper (60) is caused to coincide with a natural frequency of vibration generated in an entire device. Consequently, it is possible to effectively suppress the vibration generated in the device.

Abstract: A relief groove (23) is provided at a corner in which a track surface (21) and a flange surface (24) cross, in an inner ring (20) of a cylindrical roller bearing. A chamfer (42) is provided at a corner part in which a rolling surface (41) and an end surface (43) cross, in a cylindrical roller (40). When it is assumed that the height of the chamfer (42) from the rolling surface (41) is “h” and the curvature radius of the chamfer is “R”, the relation such that 1.0?R/h?1.5 is satisfied.

Abstract: The present invention provides a rolling bearing, for a tenter clip, which is capable of restraining deterioration of a sealing member even though the sealing member contacts ester oil, and is excellent in reliability and durability at high temperatures. A periphery of an outer ring of the rolling bearing for use in the tenter clip of a film-stretching apparatus is lubricated with the ester oil.

Abstract: An object is to provide a heat-resistant, oil-resistant rolling bearing which prevents release of low molecular weight polymers, additives and colorants that remain in trace amounts in the resin retainer from the resin body, thereby preventing deterioration of lubricating oil, and particularly a rolling bearing for use in a compressor of a refrigerating machine which prevents deterioration of refrigerating machine oil and which does not impair the function of capillary tubes of the refrigerating cycle. A heat-resistant, oil-resistant rolling bearing is proposed which includes a retainer made of at least one crystalline resin selected from a polyamide resin (polyamide 4-6, polyamide 6T or polyamide 9T), polyphenylene sulfide and polyetherketone, and having a melting point of not less than 280° C.

Abstract: A relief groove (23) is provided at a corner in which a track surface (21) and a flange surface (24) cross, in an inner ring (20) of a cylindrical roller bearing. A chamfer (42) is provided at a corner part in which a rolling surface (41) and an end surface (43) cross, in a cylindrical roller (40). When it is assumed that the height of the chamfer (42) from the rolling surface (41) is “h” and the curvature radius of the chamfer is “R”, the relation such that 1.0?R/h?1.5 is satisfied.

Abstract: In a fixing structure for a rolling bearing in which a bearing fixing ring is incorporated in a device and a rotating member is fixed to a bearing rotating ring using bolts, fastening areas with the bolts are set so that the natural frequency of the device as a whole is larger than the frequency of vibration resulting from the rotation of the rolling bearing. This prevents generation of noise or vibration in the rolling bearing.

Abstract: in a fixing structure for a rolling bearing in which a bearing fixing ring is incorporated in a device and a rotating member is fixed to a bearing rotating ring using bolts, fastening areas with the bolts are set so that the natural frequency of the device as a whole is larger than the frequency of vibration resulting from the rotation of the rolling bearing. This prevents generation of noise or vibration in the rolling bearing.