The vibration is produced by the central force of the positive and negative unbalanced moments in the rotor
The rotor is supported on two heavy duty, prelubricated, matched shielded ball bearings. A special long life grease ensures a long working life.
The inner and outer raceways of the bearings are designed so that the bearings can be easily replaced using only a pin-wrench.
The endplates are fitted with right- and left-hand threads and are self-locking.
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