2013年8月20日星期二

Some misunderstanding rolling quality judgment


Kunshan Bearing: 1, rolling through the surface quality of feeling
Sales Rolling in the process many customers said Stainless steel slewing bearing surface is bright as long as the quality is good, this is wrong. Bearing surfaces should be kind of bright glossy black, glossy black reasons causing this rolling bearing steel used whether the target and it's used for grinding and cutting fluid, etc. generated, which dominated the previous two.
2, chamfer is bright
Rolling bearing chamfer does not determine the quality, but reflects the rolling processing methods. Chamfer is black, shows that, after hardening heat treatment, thus increasing the hardness of rolling bearings, and some people think that the chamfer is black does not look good is not processed completely, this is a misunderstanding.
3, one of the cage than two body good, although the use of new technology are integrated cage, but it is only saves material, while rotating, worse performance than the two bodies.
Overall, the service life of rolling bearings have a relationship with the three factors, namely the quality of the rolling bearing itself. Second, the use of the environment. Third, the installation method.Each rotating bearing on the design of the nozzle regularly inject grease facilities, fuel operation is difficult to achieve high temperature continuous operation of pulling ingot casting machine, moving ingots, then ingots, turned spindles and other devices are installed in the unit housing. Oiling required parking removal casing, oil grease gun pressure on people. And the whole oiling points up to 30 places, temporary operation and maintenance can not achieve this kind of complicated oiling operation, had held dilute oiler with spraying in the operation of the bearing sleeve exterior, lubricating oil is difficult to enter the bearing friction between large part of the bearing is friction state.

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