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Something that sets this 2040B21 sprocket apart from others is that it is Black Oxide Finished
Our HC210-30 insert bearing has several features: a wide inner-ring
Bearing Size: 6310
2B5V136 Sheave Dimensions
100A42 sprockets with a stock bore comes with a 1-1/4" inside diameter plain hole and can be easily machine bored to custom sizes
2TB38 Sheave two-groove 4.15" OD 1C QD Bushed Sheaves Something that sets this 2040B21This 2TB38 Pulley uses a P1 Series Bushing, is directly interchangeable with other manufacturers, is 4. 15" 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 2TB38 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
