This 40BS45 sprocket features a 3/4" finished bore including a key-way and two setscrews
Weight For Rim Only: 61LBS
or to get pricing and availability on the accompanying belts/ P1 bushing
UCFBS209-26 Bearing Dimensions
4TB40 Sheave four-groove 4.35" OD 2AK20 Pulley This 40BS45 sprocket features aThis 4TB40 Pulley uses a P1 Series Bushing, is directly interchangeable with other manufacturers, is 4. 35" in diameter, and is manufactured in accordance with ARPM Standard for safe operation. With B series TB pulleys you can use A, 4L, B, 5L, AX, BX, AA, and BB belts. What separates this four groove 4TB40 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