Medway: 2517-28 Metic Tape Bush Taper Bushes are a convenient and cost effective method of fixing components to a mating shaft without using any special tools. Taper Bushes are pre-machined with the required bore & keyway size and are supplied complete with locking set screws. Taper Bushes are designed for use with V-Pulleys, Chain Sprockets, Micro V-Pulleys, Timing Belt Pulleys, Couplings, and Weld-On & Bolt-On Hubs. Part numbers are identified by a 4 digit number (e.g. 1610) which represents the taper bush series followed by the bore size (e.g. 28mm) for example 1610x28mm. MPN: 2517X28MMDUN EAN: 5059161043659 2517-28 Metic Tape Bush Attributes: Bore Diameter: 28mm Bush Length: 44.5mm Grub Screw Size: 1/2" BSW Keyway: 8 x 3.3mm Large Diameter: 85.5mm Product Type: Taper Bush with Metric Bore, Keyway & 2 Grub Screws Taper Bush Number: 2517