1-3/8" Bore; 3 Grooves; 5.18" Outside Diameter; Finished Bore; No Bushing; A|B Belt Series; 3.4" Pitch Dia Min; 4.9" Pitch Dia Max; 3-1/16" Face Wid Min; 3-7/16" Face Wid Max; Keyway; Manual Turn Adjustment Method

3 Grooves; 7-3/4" Outside Diameter; Bushed; Q1 Bushing Series; A | B Belt Series; 7" Pitch Minimum; 7.4" Pitch Maximum; 3/4 To 2-11/16" Bushing Bore Range; Keyway