... specially usable for various machine spindles, polishing machines, etc High speed Bearing is special-purpose bearing, made of special materials,specially ... , etc. Product Specifications: · Main materials: Outer ring and Inner ring of Refined stainless steel 9Cr18Mo (AISI440C) Ball of Refined ... -30 days (for the first small order) Keywords: High speed bearing, Spindle bearing, Super precision bearing ...