Info:Martin 18XH200 Solid Type DF-1 Stock Timing Pulley, 1 to 2-5/8 in Minimum Plain/Reborable Bore, 4.9055 in OD, 18 Grooves, 5.013 in Dia Pitch, 2-9/16 in W Face
Info:Browning® Gearbelt® 1055912 Type 2 Synchronous Timing Pulley With Flange, 1 to 2-1/4 in Bore, 4.903 in OD, 18 Grooves, 5.013 in Dia Pitch, 4-11/16 in W Face