1/4 Inch Steel 100 Grade Ball Bearings - SJS Cycles
2019-6-18 · Diameter Ø = 1/4 Inch 0.25' 6.35mm. High quality graded 316 stainless steel ball bearings made from AISI 316 Stainless Steel with a hardness of 25 - 39 Rockwell Scale equivalent to 140 - 160HB (Brinnel Scale) the hardness is all the way through the ball. These are the same stainless 316 steel balls used to manufacture bearing assemblies and ...
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