Sprocket Size: 120BS13H
What sets this 5311-2RS bearing apart from others is the ABEC 3 precision standard that this bearing is made to
our UCFA201-8 bearing is directly interchangeable with other brands
This BK72 Pulley 1-3/8" bore is directly interchangeable with other manufacturers
This 50BS80 sprocket features a 1-1/2" finished bore including a key-way and two setscrews
BK72 Pulley 3/4" Bore 35B27 Sprockets Sprocket Size: 120BS13HThis BK72 Pulley 3 4" bore is directly interchangeable with other manufacturers, is 6. 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 BK72 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