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Nice Ball Bearing ER20SFR Double Sealed, Extended Inner Ring, Metric OD, 52100 Bearing Quality Steel, 1.2500" Bore x 72mm OD x 1.6875" Width: Deep Groove Ball Bearings: Amazon.com: Industrial & Scientific
Amazon.com: 52100 Steel Round Bar Stock 9/16"Diameter x 12" Length : Industrial & Scientific
Amazon.com: Steel Rod, Steel Bar 100Cr6 Steel Bar JIS SUJ12 Steel Bar 13mm Steel Rod 52100 14mm Alloy Steel Rod 16mm Steel Bar 18mm 20mm 1pcs (Color : 5mm, Size : 100mm) :