' Shaft Collar, Standard, Clamp, Number of Pieces 2, 1-1/4 In. Bore Dia., Material Stainless Steel, Outside Dia. 2-1/16 In., Width 3/64 In., Clearance Dia. 2.312 In., Screw Size 1/4 In.-28, Screw Material Stainless Steel, Operating Temp. Range -40 Degrees to 800 Degrees F '