Dodge HTD Belt Sprocket, Type A2F, Taper-Lock Bore Type, 1/2 to 1-11/16 in Bore Dia, 3.464 in Outside Dia, 3.509 in, 56 Grooves, 5 mm Pitch, 1.28 in Face Width, 3.805 in Flange Dia, SH Bushing Positive and non-slip driveNo lubrication requiredNon-stretchCorrosion resistantAbrasion resistantVirtually no backlashLong lifeLow maintenance