Date: 2013-08-20

How to improve the reliability of INA bearing and the bearing outer ring

Conditioning screws and swap cover and side cover similar. Regulating screw locking approach. This ease of INA bearings clearance of conditioning in outside the box. End cover for radial and radial-axial bearing fixed on the axis side. End cap could make a variety of situations. When you end cap for the through-hole, may also carry a variety of seal installation. False for high speed, large axial loads of places.
Elastic retainer ring fixed structure simple, the assembling and dismantling the inconvenience, axial size small. INA bearing end transfers between the surface and the retaining ring and ring, you can also swap bearing axial position to cover processing and removal of errors. Real speed is not high, the axial load is unlikely places. Threaded collar applied to high speed, large axial loads of places. But threaded ring locking approach. Threaded collar can also conditioner INA bearing clearance of the radial-thrust bearings arranged face-to-face.
In the context of choosing the cage structure, you can mount the rolling more without open filling slots on the ring or make the ring too large deformation and load more rolling element bearings are good. In addition, the internal relative sliding bearing less than internal relative sliding bearing, its higher reliability. Improving the reliability of INA bearing points is to raise the value of the comprehensive correction coefficient of life, can be divided into materials, lubrication and structure choice of dimensions.
(1) if the lubricating grease lubrication requirements are met, then sealing grease lubrication is used is more reliable, of course, you want to carefully select the grade and to guarantee the application of fat links the technical requirements. When oil lubrication is used, in the context of lubrication requirements are met, it's best to INA bearings provide a dedicated source of simple method of lubrication and lubricants.
(2) from a reliability perspective, the INA bearing greater emphasis on steel melting method, depending on the need to select vacuum degassing, vacuum smelting steel and electro-slag remelted steel and vacuum remelted steel many times as a bearing material.
(3) on the INA bearing structure of choice, because the cages more prone to rusting, cross section changes are also susceptible to stress concentration, their reliability is less than solid cages, and solid cage with rivets, their reliability and less with no rivets, by two and a half body combinations and less overall solid cage of solid cage.
In short, seeks to reduce the occurrence of lubrication failures link, when you had to use more complex lubrication system, is strict with every aspect of the system reliability. Of course, also like to guarantee the height of the INA bearing parts and lubricants clean.

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