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One-way clutch bearings let a shaft rotate freely in one direction while instantly locking to prevent reverse motion
NBK Japan MJC-30CS-GR 5/16 inch to 3/8 inch Jaw-type Flexible Coupling
Chrome steel resists wear from tough riding conditions
6813-2RS Bearing is double sealed
Ball Bearings for Zipp 303 (2012) Rear HUB
NBK Japan MJB-55-GR 18mm to 28mm Jaw-type Flexible Coupling Deep groove bearing One-way clutch bearings let aNBK Japan MJB 55 GR 18mm to 28mm Jaw type Flexible Coupling NBK Japan MJB 55 GR 18mm to 28mm Jaw type Flexible Coupling NBK Japan MJB 55 GR 18mm to 28mm Jaw type Flexible Coupling, this is a Jaw type flexible coupling. The bellows allows eccentricity, angularmisalignment, and end play. Coupling Bore 1 Diameter: 18mm Coupling Bore 2 Diameter: 28mm Coupling Length: 78 Coupling Outer Diameter: 55 Material: Stainless This is a jaw type flexible coupling.
