Ball Screws and Planetary Roller Screws

HIGH ACCELERATION, SMOOTHNESS AND MAXIMUM FLEXIBILITY

 

Moog has over 30 years experience in producing and designing customized
high precision ball and planetary roller screws (ISO 3408 accuracy for classes 3-5-7) that are suitable for a variety of markets and challenging motion control applications.

Among the main features: 

  • Various screw diameter-pitch combinations available (screw load capacity and dynamic performance)
  • Wide selection of screw end shafts (bearing housings, metric threads,
    socket heads, wrenches, bored heads, etc.)
  • Nut customization (shape, flange, coupling, number of circuits, special
    machining processes)
  • Various lubrication options (selection of the right lubricant for the application, positioning of the lubrication holes)
  • Selection of materials and special processing (standard and special
    materials, surface treatments appropriate for the type of application)
  • Extremely quiet operation for low disturbance and low noise applications
  • Compact design thanks to the Moog recirculating system design that allows a better balance of the nut
  • Robust design suited for heavy duty applications, vibrations and harsh
    environment.

Benefits and features of Moog ball screws 

  • ISO3408 classes 1-3-5-7
  • Diameter from 12 mm [0.47 in] to 125 mm [4.92 in]
  • Pitch from 1.5 mm [0.06 in] to 50 mm [1.97 in]Length up to 6200 mm [244 in]
  • Load capacity:
    • Dynamic load up to 1300kN
    • Static Load up to 2500kN
  • Acceleration 10-15m/sec2
  • Single or multi-start

Benefits and features of Moog planetary roller screws

  • ISO3408 classes 1-3
  • Diameter from 15 mm [0.6 in] to 87 mm [3.42 in]
  • Pitch from 2 mm [0.08 in] to 40 mm [1.57 in]
  • Length up to 4000 mm [157.5 in]
  • Load capacity:
    • Dynamic load up to 1000kN
    • Static Load up to 2000kN
  • Acceleration up to 40m/sec2
  • Number of starts: 5-6

What is a ball screw?

A ball screw is a rolling system consisting of a threaded shaft (screw) and a nut that, internally threaded as well, contains a determined number of balls. 

The return of the balls that run in the nut during the rolling is permitted by one or more mechanical elements called liners.

A ball screw is similar to a ball bearing, with the balls travelling in one or more threads
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