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Home / Power Transmission / Couplings, Collars, and Adapters 
/ Jaw Coupling Hubs
/ Jaw Coupling Hubs 
Grainger carries jaw coupling hubs and other components for electrical motor and internal combustion power transmission applications. A jaw coupling does not require lubrication and can hold up against dirt, sand, grease, oil and moisture. Smaller size jaw couplings don't have keyways, but they are a standard size on larger bore sizes. Choose the style and size that can fit your application. Shop Grainger for jaw coupling hubs today.
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