BK57 Pulley 3/4" Bore filter_H50BS47 the 5212-2RS bearing features raceways

the 5212-2RS bearing features raceways that are precision honed to a superb finish

Part #: UCF 206

While the phosphate coated and then painted finish adds corrosion resistance to the 4TB54 pulley

This 53V800SK Sheave uses an SK bushing

BK57 Pulley 3/4" Bore filter_H50BS47 the 5212-2RS bearing features racewaysThis BK57 Pulley 3 4" bore is directly interchangeable with other manufacturers, is 5. 45" 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 BK57 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