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Aero-Motive
Reels, Balancers |
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Coffing Hoists
Hoists, Hoist
Repair |
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CM Hoists
Chain
Hoists, Wire Rope, Ratchet Levers, Trolley
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Conductix
Power and Data Transfer Systems |
Demag
Overhead Cranes
Hoists and Winches Gearmotors
Ergonomic Systems |
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Duff-Norton Mechanical
Actuators, Rotary Unions, Electromechanical Actuators |
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Equipto
Storage Systems |
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Hilman Rollers
Riggers Sets |
Harrington Hoists
Chain & Wire Hoists |
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Joyce/Dayton
Jacks, Actuators |
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Lyon
Tool Storage, Locker Units
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Perfecting Coupling |
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Ram-Pac
Hydraulic Tools
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Stanley Bostitch
Pneumatic Tools, Fasteners
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Simplex
Jacks and Braces |
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In-Plant Offices, Mezzanines
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Ball Screw Actuator Model |
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| The Duff-Norton ball screw gives you
a single-package, positive-action linear actuator which can be driven by
an electric, air, or hydraulic motor. A nut with rolling contact
reduces friction to a bare minimum in converting torque to thrust.
Overall operating efficiency is as high as 70% in some models, depending on the ratio of the worm gear set.
Because our ball screw actuator unit has been
carefully engineered and pretested, you no longer have to have to
purchase components from different suppliers and design your own system
to achieve high levels of efficiency. So you save design, setup,
and testing time.
Duff-Norton ball screw actuators are available
in two types: translating screw and rotating screw, each available with
either upright or inverted screw. In the translating screw type,
the ball nut is fixed to a rotating gear within the housing, and the
lifting screw moves up and down through the nut. In the rotating
screw type, the screw is fixed to the rotating gear, and the ball nut
travels up and down the screw. |
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Advantages
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- More loads and apply force more efficiently
than other mechanical actuators.
- Permit faster operation and longer life under
load.
- Require less power by providing positive
mechanical actions.
- Permit synchronization of multiple units.
- Capacity from 1/2 to 50 tons.
- Handles full load in tension or compression.
- 40 models available.
- Uniform lifting speed
- Multiple arrangements
- Anti-backlash feature (optional)
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| Inverted
Translating Screw |
Upright
Rotating Screw |
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