AK109H Bushing Classical Pulley Sheave, for V-belt 4L or A, 3L Belt, 1 Groove Pulley Bushing Style Outside diameter: 10.9" inch Length through bore: 1.1563" inch Belt section size: 3L, 4L , A, AX Material: Cast Iron Belt Top Width: 1/2" Bushing Not Included One pulley A-Section Groove 1 Outside Dia. 10.9" Bushing H AK-H bushing V-Belt sheaves ( pulleys ) is an excellent choice for inch and metric shafts AK Sheaves are accurately machined from fine grained cast iron, statically balanced The belt series most common for this pulley is 4L, or A , AX, V-Belts. Keyway not included