Specification Brand : ELILANEY BulletPoint1 : Precision Engineering: designed for accurate mechanical rotation, ensuring smooth operation and high efficiency in your machinery setups. BulletPoint2 : Applications: Our gears are engineered for a wide range of uses, including mechanical drive systems, pinion gears, steering mechanisms, and transmission parts. BulletPoint3 : High Precision Design: This 0.5 module 21 teeth plastic POM spur gear ensures optimal performance with precise engineering, making it perfect for various mechanical applications. BulletPoint4 : Compact Dimensions: Featuring a teeth diameter of 11.5mm and a pitch diameter of 10.5mm, this gear offers a well-designed size that enhances compatibility with a wide range of equipment. BulletPoint5 : Construction: With a thickness of 5mm at the teeth and a total thickness of 10mm, this gear is built for longevity and stability during operation, even under challenging conditions. BulletPoint6 : Inner Hole Sizes: Available with inner hole diameters of 3mm, 3.17mm, 4mm, 5mm, 6mm, 6.35mm, and 8mm, this gear provides flexibility for installation on various shafts, ensuring a perfect fit for your needs. BulletPoint7 : Mechanical Applications: Whether you’re working with gear drives, transmission parts, or flat cylindrical drive gears, this straight spur gear is designed to enhance mechanical efficiency in your machinery. Color : One Color ItemName : Cylindrical Drive 2pcs 0.5M 21T Cylindrical Gear with Step 5mm Teeth Thickness Straight Teeth Pinion 0.5 Module 21 Teeth Step Spur Gear Rack Machinery(6.35mm BORE) ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 1 centimeters ItemPackageDimensions_Width : 1 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : bevel-gears Manufacturer : ELILANEY ModelNumber : NABYANRBB-6.35MMBORE NumberOfItems : 1 PartNumber : NABYANRBB-6.35MMBORE ProductDescription : Module: 0.5 module 21 teeth Teeth Diameter: 11.5mm, Pitch Diameter: 10.5mm, teeth thickness: 5mm, Total thickness: 10mm Inner hole: 3mm 3.17mm 4mm 5mm 6mm 6.35mm 8mm ProductSiteLaunchDate : 2025-05-08T02:26:24.814Z Size : 6.35mm BORE UnitCount : 1