1TB74 Sheave single-groove 7.75" OD 08B Stainless Steel Hollow Pin Roller Chain Variable Pitch 1VP40 Pulley 7/8"

Variable Pitch 1VP40 Pulley 7/8" is designed and engineered in a way that allows for precise adjustments in diameter

chain guide

and precision sprocket with 25 hardened teeth that is manufactured to accept a R1 bushing

and precision sprocket with 12 hardened teeth that is manufactured to accept a SF bushing

Something else that is notable about this 160B18 sprocket is that it fully meets all ANSI Standards

1TB74 Sheave single-groove 7.75" OD 08B Stainless Steel Hollow Pin Roller Chain Variable Pitch 1VP40 Pulley 7/8"This 1TB74 Pulley uses a P1 Series Bushing, is directly interchangeable with other manufacturers, is 7. 75" 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 1TB74 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