Grease Quantity
The quantity of grease to be packed in a housing depends on the housing design and free space, grease characteristics, and ambient temperature. For example, the bearings for the main shafts of machine tools, where the accuracy may be impaired by a small temperature rise, require only a small amount of grease. Sufficient grease must be packed inside the bearing including the cage guide faces. The available space inside the housing to be packed with grease depends on the speed as follows:
1/2 to 2/3 of the space ...When the speed is less than 50% of the limiting speed.
1/3 to 1/2 of the space ...When the speed is more than 50% of the limiting speed.
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