Home / 20XH300TL.2517AN Ametric Inch Steel ANSI Timing Pulley with Flange, 7/8" Pitch for a XH300 Synchronous Belt, 20 Teeth, for 2517 ANSI Taper Lock Bushing (American Standard UNC Threads 1/2"- 13 Threads per Inch), 5.57 Inch Pitch Diameter, Without Hub,