Name: HTD 5M Timing PulleyMain Material: 45# Steel Type: AF TypeTeeth Pitch: 5mmBelt Width: 15/20mmGroove width: 16mm/21mmTeeth Number: 20T 22T 24TBearing Bore : 5/6/6.35/8/10/12/12.7/14/15/16/17/18/19/20/22/24/25mmKeyway Bore:8mm-keyway 3mm10mm-keyway 3mm10mm-keyway 4mm12mm-keyway 4mm12.7mm-keyway 5mm14mm-keyway 5mm15mm-keyway 5mm16mm-keyway 5mm17mm-keyway 5mm18mm-keyway 6mm19mm-keyway 6mm20mm-keyway 6mm22mm-keyway 6mmPack Quantity:1pcs