TIMKEN bearing size of the load of the load bearing ring under the action of the radial component, which may be compressed radially, with loose lead, especially in the case of the load transfer back, prone to slipping. Therefore, for heavy-duty applications should normally be lighter than normal loads and loads of occasions with some more tight. In short, the heavier the load, the amount of interference should be greater. ③ Operating temperature bearings in operation since ferrule working temperature is usually higher temperature than the adjacent parts, the bearing inner ring may be due to thermal expansion and loosening of the bearing outer ring may be due to thermal expansion affect the bearing axial clearance, so In selecting the fit, you must pay attention to consider the temperature difference between the ferrule and the thermal conductivity direction. ④
When TIMKEN bearings rotating precision rotating accuracy and smooth running higher, in order to eliminate the elastic deformation of the bearing parts and vibration, due to the amount of avoided clearance fit. ⑤ shaft and housing structures and materials if the shaft and housing (box) open hole surface irregular, will lead to bearing inner and outer rings is not properly deformed and discontinuity. Folio-style case (box) body, and the bearing outer ring with the interference fit should not be used, they should not make the outer ring in the housing (box) hole rotation. When the bearing mounted in thin-walled, light-alloy casing (box) hole or hollow shaft, bearing in order to ensure adequate bearing surface should be used than installing the thick shell (case) body, cast iron housing (box) or solid body with the selected axis bear more. ⑥ installation and removal of applications in many complex structures, in order to facilitate the installation and removal requires the use of clearance fit. According bearing operation conditions, such as interference fit must be used during installation, you can use the separation of bearings (inner and outer rings can be installed in a cylindrical roller bearings, needle roller bearings, tapered roller bearings and thrust bearings) or tapered bearing bore, can easy handling. ⑦ non-fixed end bearing axial displacement of this displacement is to be installed in non-fixed side bearing a ring in the axial direction can have some swimming gap. Usually a fixed load ferrule (usually outer) with clearance fit installation. If the file using the inner or outer side of the cylindrical roller bearings (2000 and 3200) or needle bearings installed in the non-fixed end, the inner and outer rings are made of interference fit. (2) conical inner bore bearings tapered bore bearings, the installation and removal more convenient, can be installed directly on a tapered journal or outside in the middle of a conical cylinder sleeve (adapter sleeve, withdrawal sleeves), and then mounted on the side of the intermediate sleeve with a cylindrical shaft. Bearing outer ring and housing (box) hole with cylindrical bore bearings with the same rules. With adapter sleeve or withdrawal sleeve non-separable bearings, large bearings for tolerance, but the axis of geometric tolerances must be strictly controlled.
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