Specification AgeRangeDescription : adult Brand : Xzeit BulletPoint1 : Number of teeth: 22 teeth; Module: 0.5M BulletPoint2 : Inner hole: 6 mm BulletPoint3 : Fastening screw: M3 BulletPoint4 : Total thickness: 9 mm BulletPoint5 : After strict manufacturing process, made of high quality brass material, hard and durable, has long service life.Small and light, easy to carry and convenient for installation, has good performance. ExternallyAssignedProductIdentifier : 6435659370923 ItemName : Motor Brass Pinion Gear,Tooth Gear, 0.5M 22T Copper Gears Hole 6mm 5mm 45 Steel M3 Jackscrew Brass Pinions G-S (Hole Diameter : 5mm Steel Gear) ( Size : 5mm Copper Gear ) ( Color : - , Size : 5mm Stee ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemShape : Square ItemTypeKeyword : worm-gears Manufacturer : Xzeit Material : Brass ModelName : Xzeit ModelNumber : Xzeit NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : Xzeit ProductDescription : Our shop is based on the principle of "service and quality first" and we look forward to welcoming every customer. 0.5M 22T 5/6MM Gear Small module gear is used for toy accessories, for mini cars, for remote control aircraft etc. How to calculate the calculation of gear? (for reference only) Gear module M = outer diameter ÷(number of teeth +2) Outside diameter = Gear module ×(number of teeth +2) Thank you for your visit, any problems can be contacted and resolved in person with the shop! ProductSiteLaunchDate : 2023-11-05T13:23:34.905Z Size : 5mm Steel Gear UnitCount : 1