This 1C140SF Sheave uses a SF QD bushing
Dimension (W): 76
This 5206-ZZ Bearing is a high-precision premium shielded double-row angular contact ball bearing made to ABEC 3 precision standards from AXIS
Part #: UCHA211-35
Additionally this bushing features a 32 millimeter bore with a standard keyway
2TB44 Sheave two-groove 4.75" OD 6300 Series Deep Groove Ball Bearings This 1C140SF Sheave uses aThis 2TB44 Pulley uses a P1 Series Bushing, is directly interchangeable with other manufacturers, is 4. 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 2TB44 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