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Gears



Gear mesh, the clearance between the pinion and spur in an electric car or clutch bell and spur in a nitro car, has major impact on vehicle performance. If the gear mesh is too loose, it can cause stripped gears. To tight of a mesh can cause poor performance, gears to wear out, excessive bushing and bearing wear, motor overheating and in some cases motor failure.

Follow these simple steps to get your gear mesh set just right. Mount the motor in your car or truck. Put a small piece of notebook paper between the spur and pinion gear, position the motor so the pinion and spur gears pinch the paper snug and then tighten the motor mount screws. Pull the paper out from between the gears (with the wheels off the ground). The paper should pull from the gears without tearing. If it tears, the mesh is too tight. Take a close look at the clearance between the pinion and spur gears. The gears should just barely have clearance between them but yet not be too loose as to allow the gears to strip. 48 pitch use one piece paper, 32 pitch use 2 pieces.

Disclaimer: CURRENT EXCEED RC BRUSHLESS CARS ARE EQUIPPED WITH 32 PITCH SPUR AND PINION GEARS. EXCEED RC BRUSHED CARS ARE EQUIPPED WITH 48 PITCH GEARS. ALL EXCEED RC CARS CAN USE EITHER 32 PITCH OR 48 PITCH. HOWEVER YOU MUST USE THE SAME PITCH FOR PINION AND SPUR.


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