1/2" Bore; 1 Grooves; 3-1/4" Outside Diameter; Finished Bore; No Bushing; 3L | 4L | A Belt Series; 2.66" Pitch Minimum; 3" Pitch Maximum; No Keyway

Variable Speed Pulley; 1-1/8" Bore; 1 Grooves; 7" Outside Diameter; Finished Bore; No Bushing; B Belt Series; 3.69" Pitch Dia Min; 6.65" Pitch Dia Max; Keyway; Spring Loaded Adjustment Method