Taper lock bushing proportions are outlined by 4 digits symbolizing two quantities. The first two digits symbolize the highest bore diameter and the very last two digits signify the bushing length. For instance, part variety 1008 has a greatest ID of 1.” and an ID dimensions of .8″ inches, with the overall duration specified as a complete variety of inches followed by a portion. For illustration, a 1.5″ diameter gap would be 1-1/2. Metric gap dimensions are indicated by “MM” following the metric dimension (X 25MM). Effortless to set up and get rid of, these bushings match on tapered bushing sprockets, or pulley. Bushing touches and wedges inwards, clamping sprocket shaft and bore. Bushing has an 8° taper and is made of metal with a black oxide coating.