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Continuous Duty Industrial Linear Actuator
Continuous Duty Industrial Linear Actuator

Anti-backlash Screw Jacks

Continuous Duty Industrial Linear Actuator
Continuous Duty Industrial Linear Actuator

1/4-to-250-ton capacity. Anti-backlash actuators reduce vertical backlash resulting in smooth, precise operation and minimal wear.

Duff Norton Capabilities Brochure - Positioning and Process Solutions Mechanical Actuator (Screw Jacks) Design Guide Anti-backlash Screw Jack Product Sheet Anti-backlash Translating Actuators 2 to 75-ton capacity Anti-backlash Translating Actuators 100 to 250-ton capacity Duff-Norton Product Capabilities Brochure Screw Jack Application Analysis Form

Features and Benefits

FEATURES and BENEFITS:

Backlash occurs when the motor driving an actuator reverses its load direction. When the actuator is under load, the lifting screws threads are supported by the worm gears threads. The anti-backlash nut, pinned by the worm gear and adjusted downwards by the shell cap, forces the bottom thread surfaces against the upper thread surfaces of the lifting screw. Thus, backlash between the lifting screw and worm gear threads is reduced to a minimum.

  • The industry's best backlash control.
  • A dual role as an internal safety nut.
  • Available with standard, optional, & numeric ratios.
  • Available in stainless steel for most capacities.
  • Precise motion control.
  • The ability to lock and hold a load, thereby eliminating the need for brake motors required for some applications.
  • Available on 1/4 to 250 Ton models.