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Size Name:100000 Bearings
Standard Diameter: 1/4″ / .25 Inches
Metric Diameter: 6.35mm
Grade: 25
Material: 440 Stainless Steel
Ball Weight (each): .036897 Ounces / 1.046 Grams
440 stainless steel balls offer the precise geometry and fine surface finish that makes them especially useful for bicycles, casters, drawer slides, door locks and many other applications with the added benefit of corrosion resistance. 440 stainless steel is a high carbon martensitic stainless steel which has high strength, good hardness and wear resistance. This type of stainless is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. Unlike some stainless steel, this 400 series metal has a composition which allows it to be attracted to a magnet.