For sealed bearings, have filled the appropriate grease at the production; for open bearings sealed were also set in the host device in use to prevent grease leakage.
　　This is how much grease into the bearing as a good question.
　　Filling grease amount too small, easily give rise to lack of fat or dry friction affect life expectancy. NSK bearing grease too much will cause the bearing temperature rise. Grease large quantities of polluting the environment and wasteful. Thus, to the injected amount of grease in the bearings was able to ensure that adequate lubrication of the bearing under the premise of the less the better.



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