Specification Brand : Heyiarbeit BulletPoint1 : [Size] -Bore Diameter:7mm/0.28"; Total height: 25mm/0.98"; Tooth Outer Diameter: 31.8mm/1.25"; Tooth Width: 11mm/0.43"; Teeth: 20T; Tooth Pitch: 5.08mm/0.20" BulletPoint2 : [High Quality] -Timing belt gear is made of aluminum alloy, sturdy and durable,surface oxidation treatment, anti-rust and anti-corrosion effectively BulletPoint3 : [Features] -Contact with the 20 tooth side which minimizes the risk of the belt slipping; Applies to 11mm width belt BulletPoint4 : [Advantage] -20 Teeth Timing Pulley providing a smoother transition between belt, good performance for 3D printers BulletPoint5 : [Application] -Widely used in 3D printer, milling machine, gear shaper, drilling machine, CNC engine lathe, hobbing machine or other machinery Color : Silver ExternallyAssignedProductIdentifier1 : 0647878356879 ExternallyAssignedProductIdentifier2 : 647878356879 FitType : Universal ItemName : Heyiarbeit Timing Belt Pulley 20 Teeth 7mm Bore Aluminum Alloy Flange Synchronous Wheel for 11mm Belt 3D Printer CNC ItemPackageDimensions_Height : 10.3886 centimeters ItemPackageDimensions_Length : 2.6924 centimeters ItemPackageDimensions_Width : 6.2992 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : timing-pulleys Manufacturer : Heyiarbeit Material : Aluminum ModelNumber : DFM6200GP0512-FBA NumberOfItems : 1 NumberOfTeeth : 20 PartNumber : DFM6200GP0512-FBA ProductDescription : Heyiarbeit Aluminum Alloy Synchronous Wheel specification: Mounting hole type: round hole Color: silver Product model: XL20 Aperture: 7mm/0.28" Total height: 25mm/0.98" Tooth outer diameter: 31.8mm/1.25" Tooth width: 11mm/0.43" Tooth Pitch: 5.08mm/0.20". Teeth: 20T Features: 1. Synchronous Wheel made of high quality Aluminum Alloy, excellently machined, finished smoothly and longer service life 2.Providing a smoother transition between belt and minimizes the risk of the belt slipping 3. It is very useful in high-reduction drives in the occasion that need to improve the wrap-around capabilities of belts. Package Contents: 1Pcs x Timing Pulley