2AK-20 7/8" Bore Solid Sheave Pulley - 2" OD , Hex set screws 2-Groove for V-belts 4L, 3L 2AK (OD 2"- ID 7/8")2AK 20 V Belt Sheave Pulley 2" OD 7 8" Bore Dual Groove Cast Iron This 2AK 20 solid sheave pulley is precision machined from cast iron and features two grooves for 3L or 4L V belts. With a 2 inch outer diameter and a 7 8" keyed bore, it's designed for motors, fans, or machinery requiring reliable belt driven power transfer. Pack size: 1 pulley Outside diameter: 2" Bore size: 7 8" Belt compatibility: 3L and 4L V belts Number of grooves: 2 Material: