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Size Name:75 Bearings
Standard Diameter: 4″ / 4.00 Inches
Metric Diameter: 101.6mm
Grade: 100
Material: AISI 52100 Chromium Steel
Ball Weight (each): 9.45 Pounds / 4.286 Kilograms
Chrome 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.