maximum rpm: Kaydon Bearings JHA10XL0 Four-Point Contact Bearings

inside diameter::1.0000 in; bearing material::Steel; outside diameter::1.3750 in; precision rating::ABEC 1 (ISO Class Normal&; overall width::0.2500 in; cage material::Fiberglass Reinforced Nylon; internal clearance::C0; maximum rpm::520 RPM; closure type::Double Seal; finish/coating::Uncoated;