Reflected Inertia of Slide Table Driven by Rack & Pinion

[Tigerdawg]

How do you calculate the reflected inertia for a slide table driven by a rack and pinion? Is it similar to a ball screw drive, replacing the lead of the ball screw with the pitch circumference of the pinion?

 

[SERVOCAM]

A rack & pinion is a tangential drive just like a belt and pulley. It uses the same formuals.

Wr^2
Jpinion = ------
2g

J = Inertia (lb-in-sec^2)
W = weight of pinion (lbs)
r = pinion radius (in.)
g = gravity (386 in/sec^2)

To calculate the Inertia of the load:

Wr^2
Jload = -------
g

J = Inertia (lb-in-sec^2)
W = weight of load (lbs)
r = pinion radius (in.)
g = gravity (386 in/sec^2)

Hope this is what your looking for.
Cameron Anderson - Sales & Applications Engineer
Aerotech, Inc. -

http://www.aerotech.com

"Dedicated to the Science of Motion"

 

[jbartos]

Suggestion: Visit

http://www.electromate.com/Motioneering Software Instruction Handbook.pdf

for more info