Can ball screws be used in vertical applications without back driving?
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| No. Without a brake motor, ball screws will always back drive. |
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Can acme screws be used in vertical applications without back driving?
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| For vertical motion, lead screws can be self-locking so that even without brakes, dropping or drifting when motor power is removed or lost can be prevented. But the higher friction of a non-backdriving screw requires increased power to drive. The lead of the screw needs to be less than one-third of the minor diameter to not backdrive. |
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What is the maximum recommended speed for DualVee guide wheel technology?
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| Speeds up to 5.5 meters per second. |
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Can DualVee guide wheels be used in high temperature applications?
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| Specially designed guide wheels using all stainelss steel components, heat stabilized material, and with special grease (Krytox GPL 227) can operate up to 500°F. |
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What is the coefficient of friction for DualVee guide wheel technology?
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| Between 0.005 — 0.02 when operated on DualVee track. |
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What do the terms 'axial load' and 'radial load' refer to with regard to a bearing?
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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.
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What are 'Pitch', 'Roll', and 'Yaw'?
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Pitch describes a vehicle's tendency to rotate forward or backward.
Yaw describes a vehicle's tendency to turn left to right with respect to the direction of travel.
Roll describes a vehicle's tendency to rotate side to side with respect to the direction of travel.
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