Name: HTD 8M Timing PulleyMain Material: Aluminum AlloyType: AF TypeTeeth Pitch: 8mmFixed mode: 2* M6Belt Width: 15/20/25/30/40mmGroove width: 16/21/27/32/42mmTeeth Number: 25T Bearing Bore : 8/10/12/14/15/16/17/18/19/20/22/24/25/28mmKeyway Bore:8mm-keyway 3mm10mm-keyway 3mm10mm-keyway 4mm12mm-keyway 4mm14mm-keyway 5mm15mm-keyway 5mm16mm-keyway 5mm17mm-keyway 5mm18mm-keyway 6mm19mm-keyway 6mm20mm-keyway 6mm22mm-keyway 6mm24mm-keyway 8mm25mm-keyway 8mm28mm-keyway 8mmPack Quantity:1pcs