Features 1、The end face thickness is processed to 3mm, which can cover the screw head, thus saving weight and space and providing versatility. 2、This hole diameter allows you to use shafts and tubes up to 14mm in diameter. 3、These gears have a 14mm mounting style and are compatible with any 1302 or 1305 series clamping hub. 4、Can create a 3:1 deceleration or overspeed setting according to your application. 5、When used in conjunction with a 30‑tooth servo gear, this combination produces a 3:1 underspeed, which reduces the final speed while increasing the torsion by 3 times. Specification Item Type: 90 Tooth Cylindrical Aluminum Gear Material: Aluminum Complete removal of anodizing Number of Teeth: 90 Gear Pitch: Approx. 0.8mm / 0.03in Pressure Angle: 20° Quantity: 1 Center Hole: Approx. 14mm / 0.6in Package List 1 x Gear