Dodge HTD Belt Sprocket, Type D1F, QD Bore Type, 1/2 to 2-15/16 in Bore Dia, 6.909 in Outside Dia, 7.018 in, 40 Grooves, 14 mm Pitch, 2.13 in Face Width, 7.518 in Flange Dia, SF Bushing Positive and non-slip driveNo lubrication requiredNon-stretchCorrosion resistantAbrasion resistantVirtually no backlashLong lifeLow maintenance