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Re: Bevel/Miter Gear Mounting Distances
Just dug out Shigley & Mithell Machine Design Text
For the VEX Miter gears the average gear tooth diameter is 0.926 inches, or a radius of 0.463 inch. For Miter gears both Pitch angles are 45°
Axial Bearing Load = (Torque / radius avg) tan (45°) sin(45°)
= (Torque/0.463) (1) (.707)
CIM Motor Torque at maximum power is 172 oz* in
Axial Gear Force = 172 (Ounce*In) * (.707) / 0.463 in = 262 oz or 16.4 lbs.
Directly driven by a CIM Motor. If there are typical swerve speed reduction stages of 4:1 or so ahead of the miter gears, you can multiply this axial force by that ratio as well.
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Last edited by InFlight : 03-09-2015 at 15:09.
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