Dodge High Torque Belt Sprocket, Type A1F, Series: HT250, Taper-Lock Bore Type, 1/2 to 1-1/4 in Bore Dia, 2.954 in Outside Dia, 3.008 in, 30 Grooves, 8 mm Pitch, 1.13 in Face Width, 3.346 in Flange Dia, 1210 Bushing Positive and non-slip driveNo lubrication requiredNon-stretchCorrosion resistantAbrasion resistantVirtually no backlashLong lifeLow maintenance