– Recommended for Bushings and Bottom Bracket Boxes.
– Manufactured to meet and exceed ABEC 5 standards.
– High precision balls of 5/1,000,000.
– Top hardness level:HRC-65.
– Graphite/Nylon ball retainers, have no friction and provide constant lubrication.
– Tracks in Chromium 52100 High Carbon alloy




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