Globact 32P 3_175mm 12T 13T 14T 15T 16T Pinion Motor Gear Set with Hex Key for 110 RC Car Brushed Brushless Motor

Specifications: Material: Metal Teeth: 12T 13T 14T 15T 16T  Height: 14mm Tip diameter 12T: 10.7mm 13T: 11.7mm 14T: 12.4mm 15T: 13.4mm 16T: 14mm Suitable shaft diameter: 3.175mm Package information: Package size: 8.5 * 4.5 * 3cm / 3.3 * 1.8 * 1.2in Package weight: 10g Polybag package Package list: 1 * 32P 12T Pinion Motor Gear 1 * 32P 13T Pinion Motor Gear 1 * 32P 14T Pinion Motor Gear 1 * 32P 15T Pinion Motor Gear 1 * 32P 16T Pinion Motor Gear 5 X Grub Screws 1 X Hex Key Note: 1.?32P?is the pitch of each tooth on the pinion gear and the 12T 13T 14T 15T 16T is the number of teeth on the pinion gear. You have to make sure your spur gear and pinion gear have the same pitch, or the teeth won't mesh. 2.?3.175mm?The pinion gear shaft diameter or bore is 3.175mm, make sure your RC motor shaft have the same diameter. 3.Make sure you thread lock the grub screw. They are hard to find when they fall out. 4.Larger gears will result in higher speeds while smaller gears provide more torque. For quicker acceleration go for a smaller pinion gear (with fewer teeth) and a larger spur gear (with more teeth). 5.Your car will accelerate off the mark very quickly with more torque, and you'll also benefit from cooler running temperatures, extending the life of your motor and ESC. 6.How to install the pinion gear: You will probably need to loosen the motor a bit, in order to fit the pinion gear on. Make sure you lock it in place on the flat portion of the motor shaft. When you are tightening it back up, make sure you leave about a gap between the pinion gear and the spur gear. That gap will be very small. It should be about the width of a piece of paper.