Bearing isolator is developed on the basis of the composite labyrinth seal in the form of a non-contact seal, formed by a combination of stationary ring and a ring. There static ring back hole to prevent leakage of the lubricant. Ring against the drive ring rotates with the shaft, and stationary ring and a complex maze of paths, the barrier outside contaminants entering the bearing housing. Bearing isolator bearing is a permanent protection, the performance of the bearing isolator is preferably made of a metal
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