Standard V-belt Sheave Use with A, 3L & 4L (A & AX) V-Belts It includes a detailed table of contents listing various sheave types, specifications, and maintenance tips. For account setup and inquiries, contact... V-belt pulleys (sheaves) are the component in a power transmission drive that transmits power to the belt. Browning BK25X7/8 Finished Bore Sheave, 7/8 Bore, Uses A, B Belt, 1 V Belt Sheave 2AK2534 Bored-To-Size Sheave, 2AK25-3/4 - MDS V Belt Pulley Cast iron for resistance to wear and galling Martin 2AK25 3/4 AK Series Bored-to-Size Solid Type A FHP Sheave, 3/4 in Finished Bore, 2.55 in OD, 2 Grooves, 2.3 in (A/4L)/1.96 in (3L) Dia Pitch, 1-3/8 in W Face Pulley outside diameter is 2., 55 inch, Double Groove Classical V-belt sheave fits a variety of classical profile V-belts, suitable for use in many existing power transmission drives.