Specification Brand : TMP1105 BulletPoint1 : The gear is made of 45# steel, and the surface maybe with rust on some hardened gears. BulletPoint2 : Package List: 1pc Spur Gear 2M 25Teeth BulletPoint3 : Gear inner hole tolerance is positive 0-0.03, with locking hole. BulletPoint4 : Batches of different parameters may change slightly, please prevail in kind. BulletPoint5 : Links are only the price of the gear, if you need to support the rack, you need to place anther order. Color : 25 Teeth ExternallyAssignedProductIdentifier : 8306070475307 ItemName : TMP1105 1PC Convex Gear Pinion 2Module 25Teeth 10/12/14/15mm Hole Carbon Steel Convex Gear (Hole Diameter : 22mm, Number of Teeth : 25 Teeth) ItemPackageQuantity : 1 ItemTypeKeyword : rack-and-pinion-gears Manufacturer : 唐铭鲆544162-US Material : Metal NumberOfItems : 1 PartNumber : 唐铭鲆544162-US ProductDescription : The gear is made of 45# steel, and the surface maybe with rust on some hardened gears. Package List: 1pc Spur Gear 2M 25Teeth Gear inner hole tolerance is positive 0-0.03, with locking hole. Batches of different parameters may change slightly, please prevail in kind. Links are only the price of the gear, if you need to support the rack, you need to place anther order. ProductSiteLaunchDate : 2021-09-10T05:31:47.836Z Size : 22mm Style : Modern UnitCount : 1 UnspscCode : 52140000