Item: Radial Ball Bearing, Bearing Type: Double Shields,  Bore Dia.: 20mm,  Bore Tolerance: +0/-0.01mm, Outside Dia.: 52mm, Outside Dia. Tolerance: +0/-0.013mm,  Width: 15mm,  ABEC Tolerance: 1, Dynamic Load Capacity: 3,580 lb.,  Static Load Capacity: 1,780 lb.,  Max. RPM: 17,000,  Temp. Range: -40 Degrees to 350 Degrees F.,  Bearing Material: 52100 Chrome Steel, Cage Material: Pressed Steel, Shield Material: Steel,  Lubrication: Polyrex EM Grease, Standard  Industry Number: 6304-ZZ C3

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