Dynaflex® Shear Type Couplings Compare Item # Bore Dia. (A) Bore Dia. (B) Horse Power @ 1750 rpm D Ref. E Ref. Torque Rating C F J-1211-7-3 1 in 1 in 1 hp 2 in 1.11 in 40 lb∑in 1.5 in 2.88 in J-1211-7-21 0.75 in 0.875 in 1 hp 2 in 1.11 in 40 lb∑in 1.5 in 2.88 in J-1211-7-1 0.75 in 0.75 in 1 hp 2 in 1.11 in 40 lb∑in 1.5 in 2.88 in J-1211-7-4 0.625 in 0.75 in 1 hp 2 in 1.11 in 40 lb∑in 1.5 in 2.88 in J-1211-7-9 0.625 in 0.625 in 1 hp 2 in 1.11 in 40 lb∑in 1.5 in 2.88 in J-1211-7-16 0.5 in 0.75 in 1 hp 2 in 1.11 in 40 lb∑in 1.5 in 2.88 in J-1211-6-1 0.75 in 0.75 in 3/4 hp 1.81 in 1.05 in 30 lb∑in 1.38 in 2.69 in J-1211-6-14 0.625 in 0.75 in 3/4 hp 1.81 in 1.05 in 30 lb∑in 1.38 in 2.69 in J-1211-6-18 0.625 in 0.625 in 3/4 hp 1.81 in 1.05 in 30 lb∑in 1.38 in 2.69 in J-1211-6-10 0.5 in 0.75 in 3/4 hp 1.81 in 1.05 in 30 lb∑in 1.38 in 2.69 in J-1211-6-12 0.5 in 1/2 in 3/4 hp 1.81 in 1.05 in 30 lb∑in 1.38 in 2.69 in J-1211-5-1 0.75 in 0.75 in 1/2 hp 1.63 in 1 in 20 lb∑in 1.13 in 2.5 in J-1211-5-2 0.625 in 0.625 in 1/2 hp 1.63 in 1 in 20 lb∑in 1.13 in 2.5 in J-1211-5-4 0.5 in 0.75 in 1/2 hp 1.63 in 1 in 20 lb∑in 1.13 in 2.5 in J-1211-5-8 0.5 in 0.625 in 1/2 hp 1.63 in 1 in 20 lb∑in 1.13 in 2.5 in J-1211-5-3 0.5 in 1/2 in 1/2 hp 1.63 in 1 in 20 lb∑in 1.13 in 2.5 in J-1211-4-1 0.625 in 0.625 in 1/3 hp 1.38 in 0.91 in 13 lb∑in 1 in 2.25 in J-1211-4-4 0.5 in 0.625 in 1/3 hp 1.38 in 0.91 in 13 lb∑in 1 in 2.25 in J 1211-4-14 0.5 in 1/2 in 1/3 hp 1.38 in 0.91 in 13 lb∑in 1 in 2.25 in J-1211-4-11 0.375 in 0.625 in 1/3 hp 1.38 in 0.91 in 13 lb∑in 1 in 2.25 in J-1211-4-35 0.375 in 1/2 in 1/3 hp 1.38 in 0.91 in 13 lb∑in 1 in 2.25 in J-1211-4-2 0.375 in 3/8 in 1/3 hp 1.38 in 0.91 in 13 lb∑in 1 in 2.25 in J-1211-3-1 0.5 in 1/2 in 1/4 hp 1.25 in 0.88 in 10 lb∑in 0.88 in 2.13 in J-1211-3-8 0.375 in 1/2 in 1/4 hp 1.25 in 0.88 in 10 lb∑in 0.88 in 2.13 in J-1211-3-2 0.375 in 3/8 in 1/4 hp 1.25 in 0.88 in 10 lb∑in 0.88 in 2.13 in J-1211-3-12 0.312 in 1/2 in 1/4 hp 1.25 in 0.88 in 10 lb∑in 0.88 in 2.13 in J-1211-3-14 0.312 in 3/8 in 1/4 hp 1.25 in 0.88 in 10 lb∑in 0.88 in 2.13 in J-1211-3-4 0.312 in 0.312 in 1/4 hp 1.25 in 0.88 in 10 lb∑in 0.88 in 2.13 in J-1211-2-1 0.375 in 3/8 in 1/8 hp 1 in 0.72 in 5 lb∑in 0.75 in 1.75 in J-1211-2-12 0.312 in 3/8 in 1/8 hp 1 in 0.72 in 5 lb∑in 0.75 in 1.75 in J-1211-2-3 0.312 in 0.312 in 1/8 hp 1 in 0.72 in 5 lb∑in 0.75 in 1.75 in J-1211-2-6 0.25 in 3/8 in 1/8 hp 1 in 0.72 in 5 lb∑in 0.75 in 1.75 in J-1211-2-11 0.25 in 0.312 in 1/8 hp 1 in 0.72 in 5 lb∑in 0.75 in 1.75 in J-1211-2-2 0.25 in 1/4 in 1/8 hp 1 in 0.72 in 5 lb∑in 0.75 in 1.75 in J-1211-1-5 0.312 in 0.312 in 1/16 hp 0.81 in 0.56 in 2.5 lb∑in 0.63 in 1.38 in J-1211-1-9 0.25 in 0.312 in 1/16 hp 0.81 in 0.56 in 2.5 lb∑in 0.63 in 1.38 in J-1211-1-1 0.25 in 1/4 in 1/16 hp 0.81 in 0.56 in 2.5 lb∑in 0.63 in 1.38 in J-1211-1-31 0.187 in 1/4 in 1/16 hp 0.81 in 0.56 in 2.5 lb∑in 0.63 in 1.38 in J-1211-1-2 0.187 in 0.187 in 1/16 hp 0.81 in 0.56 in 2.5 lb∑in 0.63 in 1.38 in SK-1947-29 0.25 in 1/4 in 1/50 hp 0.56 in 0.36 in 0.8 lb∑in 0.44 in 0.81 in SK-1947-19 0.187 in 1/4 in 1/50 hp 0.56 in 0.36 in 0.8 lb∑in 0.44 in 0.81 in SK-1947 0.187 in 0.187 in 1/50 hp 0.56 in 0.36 in 0.8 lb∑in 0.44 in 0.81 in SK-1947-52 0.125 in 1/4 in 1/50 hp 0.56 in 0.36 in 0.8 lb∑in 0.44 in 0.81 in SK-1947-14 0.125 in 0.187 in 1/50 hp 0.56 in 0.36 in 0.8 lb∑in 0.44 in 0.81 in SK-1947-6 0.125 in 0.125 in 1/50 hp 0.56 in 0.36 in 0.8 lb∑in 0.44 in 0.81 in Downloads Couplings Applications Selection Guide Engineering Guide