Tangential Force on spur gear

[AeroNucDef]

Hi all,

I'm having a bad day, my brain has stopped working. Please don't laugh at this question.

How do I calculate the Tangential Force on a spur gear that's attached to a motor shaft.
Here's the data.
Torque on motor shaft: 30Nm
Diameter of motor shaft: 10mm
Shaft RPM: 100

Spur Gear PCD; 45mm
No of Teeth: 15
Tooth width: 25mm
Module: 3

Please can someone have a go at it. The reason I need this stuff is so I can use the Lewis equation.

Regards

Aero

 

[hydtools]

force = torque/(pcd/2)

Ted

 

[AeroNucDef]

Thanks Ted.

This is the equation I used in my calc's, but one of the stress engineers said it was Ft=T/PCD, and another said it was Ft=2T/r.

Regards

Aero

 

[leisure17]

I wouldn't go on one of their planes then

 

[desertfox]

Hi

Try this site:-

http://www.roymech.co.uk/Useful_Tables/Drive/Gears.html#Design