BK45-7/8 ID 7/8 ( 0.875 ) Bore cast iron Solid Pulley with 4.5 inch OD for V-belts size 4L. 5L (BK4578)

VXB Brand. 1 Groove BK45-7/8" ID 7/8" ( 0.875" ) Bore cast iron Solid Pulley with 4.5" inch OD for V-belts size 5L (BK4578) BK Finished Bore Sheaves for (4L or A or 5L or B Belts) BK Sheaves are accurately machined from fine grained cast iron. statically balanced. They are furbished with Standard Keyseats and Hollow Head Setscrews The V-Belts you that can run in this pulley are 4L. or A or 5L. B. V-Belts. The belt series most common for this pulley is the 4L and A section. Keyway not included Outside diameter: 4.5" inch Bore: 7/8" inch Belt section size: 4L. 5L 1 Groove One pulley Hex set screws keyway : 3/16 X 3/32 BK45-7/8"BK45-7/8" ID 7/8" ( 0.875" ) Bore cast iron Solid Pulley with 4.5" inch OD for V-belts size 4L. 5L (BK4578)