BK62 Pulley 1-1/8" Bore #40 P Type Sprockets The 4TA torque arm is

The 4TA torque arm is built to withstand the reaction torque of size 4 gearboxes

160A11 sprockets with a stock bore comes with a 1-1/2" inside diameter plain hole and can be easily machine bored to custom sizes

120C70 sprockets with a stock bore come with the standard 1-1/2" inside diameter hole with no keyway or setscrews and can be easily machine bored to custom sizes

For more information on a single groove 1TB50 pulley

BK62 Pulley 1-1/8" Bore #40 P Type Sprockets The 4TA torque arm isThis BK62 Pulley 1 1 8" bore is directly interchangeable with other manufacturers, is 5. 95" in diameter, and is manufactured in accordance with ARPM Standard IP20 for safe operation. It works with belt sizes A, 4L, B, 5L, AX, BX, AA, and BB. What separates this BK62 pulley from the others is that it is made using a high grade 35 cast iron, is phosphate coated, painted, and balanced at the factory. Using the grade 35 cast iron offers a higher tensile