Specification Brand : TMP1105 BulletPoint1 : Small module gear is used for toy accessories, for mini cars, for remote control aircraft etc. BulletPoint2 : How to calculate the calculation of gear? (for reference only) BulletPoint3 : Gear module M = outer diameter ÷(number of teeth +2) BulletPoint4 : Outside diameter = Gear module ×(number of teeth +2) BulletPoint5 : Surface treatment: None; Package Includes: According to choice x1pc Color : 0618 039g ExternallyAssignedProductIdentifier : 8306070442477 ItemName : TMP1105 0.6M 20T 3.175mm Steel Gears (Hole Diameter : 3.175mm) ItemPackageQuantity : 1 ItemTypeKeyword : rack-and-pinion-gears Manufacturer : 唐铭鲆544162-US Material : Metal NumberOfItems : 1 PartNumber : 唐铭鲆544162-US ProductDescription : 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) ProductSiteLaunchDate : 2021-09-10T05:30:48.953Z Size : 3.175mm UnitCount : 1 UnspscCode : 26111500