U Groove Greased Ball Bearing, U604ZZ is one of the most common widely used bearing, U604ZZ is an Economic and most common standard Bearing, used in thousands of Applications. Specifications: Type: Deep groove ball bearings Closures: 2 Metal Shields U604ZZ Material: Chrome Steel Size: 4 x 13 x 4mm Limiting Speed: Grease Lubrication: 56000 RPM What you Get: 1 x Bearing U Groove 4x13x4mm Guide Pulley Rail U604ZZ
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