Frequently Asked Questions

1. Can ball screws be used in vertical applications without back driving?
2. Can acme screws be used in vertical applications without back driving?
3. What is the maximum recommended speed for DualVee guide wheel technology? 
4. Can DualVee guide wheels be used in high temperature applications?
5. What is the coefficient of friction for DualVee guide wheel technology?  
6. What do the terms "axial load" and "radial load" refer to with regard to a bearing?
7. What are 'Pitch', 'Yaw', and 'Roll'?  

More FAQs:

DualVee LoPro UtiliTrak GV3 SL2 PDU2

Can ball screws be used in vertical applications without back driving?

No.  Without a brake motor, ball screws will always back drive.  

Can acme screws be used in vertical applications without back driving? 

Yes.  The lead of the screw needs to be less than 1/3 of the minor diameter to not back drive.

What is the maximum recommended speed for DualVee guide wheel technology?
 
Speeds up to 5.5 meters per second.  

Can DualVee guide wheels be used in high temperature applications?

Specially designed guide wheels using all stainelss steel components, heat stabilized material, with special grease, can operate up to 500^oF.

What is the coefficient of friction for DualVee guide wheel technology?

Between 0.005 - 0.02, when operated on DualVee track.

What do the terms 'axial load' and 'radial load' refer to with regard to a bearing?

Axial load is any load that is parallel to the axis of rotation of the bearing. Radial load is any load that is perpendicular to the axis of rotation.

 What are 'Pitch', 'Roll', and 'Yaw'?

Pitch is a term used to describe a vehicle's tendency to rotate forward or backward. Yaw is a term that describes a vehicle's tendency to turn left to right with respect to the direction of travel. Roll is a term that describes a vehicle's tendency to rotate side to side with respect to the direction of travel.