1TB60 Sheave single-groove 6.35" OD Roller Chain Tensioners 120R21 Sprocket Dimensions

120R21 Sprocket Dimensions

Dimension (A): 1-1/4"

Each precision component of this 16B A1 attachment is made from top-quality carbon steel that has been heat-treated for extended working life and durability

and directly interchanges with other manufactures links

120R18 Sprocket Dimensions

1TB60 Sheave single-groove 6.35" OD Roller Chain Tensioners 120R21 Sprocket DimensionsThis 1TB60 Pulley uses a P1 Series Bushing, is directly interchangeable with other manufacturers, is 6. 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 1TB60 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