IKO bearing radial preloading method and the axial preloading method
We are required to experience, experience is very valuable to us, no matter what the experience is very rare, for observation of IKO bearing quality experience is more rare, and we all know that IKO bearing the price is expensive, the quality is very good, but now some non molecular method fraud IKO bearing, or shoddy, IKO bearing buyers this also makes losses, to do we buy in IKO bearing is needs to use the experience to judge, not good experience, we distinguish between IKO bearing is good or bad, so we'll teach you to use the quality of observation method to check the IKO bearing.
Observation method. Rolling bearing with the naked eye observation of IKO, inner and outer raceway there should be no signs of peeling and severe wear, and is a circular groove; all the rolling surface should be no spots, cracks and peeling; cage should not loose, no damage, no wear, and rolling body clearance and large.
We are reading the above article. I want you to tell IKO bearing on observation or experience, is to understand the main points, except of course the method check IKO bearing observation, there are other ways.
1 radial Preload Method
Radial jacking method used in the conical hole TIMKEN bearings under radial load, the typical example is the double precision short cylindrical roller bearing TIMKEN, use the TIMKEN bearing nut to adjust the axial position relative to the inner ring of tapered shaft neck, swelling capacity suitable and radial clearance, this method used for the machine tool spindle and jet engine.
2 axial preloading method
Axial preloading method can be divided into the preload and the preload of two.
The preload, by adjusting the bushing or pad size, obtain appropriate preload; also available through measurement or control the starting friction moment to have proper preloading; also can be directly used the pre paired good pre tension of double TIMKEN bearings to achieve the purpose of pre tight, the general without requiring the user to re adjustment, in short, all through the TIMKEN bearing axial preload, use its relative position will not change.
Preload is with coil springs, disc springs, TIMKEN bearings appropriate preload method. A preloaded spring rigidity - like than the TIMKEN bearing rigidity is much smaller, so the relative position of the TIMKEN bearing preload in use will change, but the pre tension is approximately constant.
