1/2 inch MS Shaft Collar Clamps, C Clamp

haft collars in multiple styles to fit shafts ranging from 1/8" to 6" and 3mm to 150mm. They are made from select North American bar stock in 303 & 316 stainless steel, black oxide and zinc plated carbon steel, high-strength aluminum, and engineered plastic. Each shaft collar is stamped with the Duri name and bore size for ease of identification. duri shaft collars have precisely controlled face to bore perpendicularity (identified by the grooved face) TIR ≤ .002" (.05mm) with tighter tolerances on bearing locknuts. Perpendicularity is critical for alignment when a shaft collar is used as a load-bearing face, mechanical stop, or for mounting components.