Bearing common location form several ways

Bearing on how to locate in the shaft and chassis frame? In shaft system, some of the shaft in the work because of work load, speed and environment problem, can make the shaft in the axial and radial heat from the cold happen; Some axis, as carrying a large axial load, also need to load force is passed on to the frame. We have three kinds of common forms of bearing positioning way, the bearings share network according to the following understanding. 1, both ends fixed this way of positioning is one-way bearing inner ring by interference fit tight on the shaft neck, and shoulder block, bearing outer ring with bearing end cover. Bearing block shaft respectively on both ends of one-way movement. To prevent axial thermal elongation bearing card to death, for radial bearings, bearing cover and the bearing outer ring end face between 0. 2 to 0. 3 mm gap; Of centripetal thrust bearing, bearing cover and sleeve socket between a set of gasket to adjust bearing internal clearance. The positioning way is suitable for small transmission torque, low working temperature of short axis. 2, the bidirectional fixed at one end, end winding end bearing inner and outer ring of the bidirectional fixed, inherit the two-way axial force. At the other end bearing axial is not fixed, allowing the heat expansion of the axial elongation of freedom. Because of the different type of bearing, so 'two-way fixed' and 'moving structure is not the same. Usually will be smaller radial force bearing of the bidirectional fixed, to bear axial force, and coordinate the two bearing of life; When the shaft with no axial force, is the smaller radial force bearing, make easy to swim. This way of positioning is often used in large span of axle shaft or high operating temperature. 3, supporting swimming when a pair of herringbone gear meshing, for manufacture and installation error, will produce slight axial channeling. To prevent gear jammed, often will swim gear shaft bearing design into two little words, an adult word two supporting the fixed gear shaft. When the shaft bearing for sliding bearing, shaft axial positioning rely on the shoulder. When you need one end fixed, the fixed end shaft neck & ensp; Make shoulder or collar on both sides, or with the combination of radial sliding bearing and thrust bearing.