Dodge High Torque Belt Sprocket, Type A1F, Series: HT250, Taper-Lock Bore Type, 1/2 to 1-1/8 in Bore Dia, 2.753 in Outside Dia, 2.807 in, 28 Grooves, 8 mm Pitch, 1.13 in Face Width, 1108 Bushing Positive and non-slip driveNo lubrication requiredNon-stretchCorrosion resistantAbrasion resistantVirtually no backlashLong lifeLow maintenance