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Industry Standard Grade 100 Hardened Steel Ball Bearings For Uber Ball Drive System
High Quality Graded Hardened Chrome Steel Ball bearings made from Chromium AISI 52100 steel. x 20pcs
Hardened to 60-67 Rockwell Scale equivalent to 700-900 HV (Vickers Scale) and are hardened all the way through the ball. These are the same hardened steel balls used to manufacture bearing assemblies and have a high duty and life cycle.
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