Linear Drives

Linear drives from Curtiss-Wright can be used in a wide range of applications and consist of a linear roller screw spindle, transmitting the rotation of the motor linearly. For upgrades and replacements of existing elevation hydraulic drives, an Elevation Linear Gear (ELG) can be easily installed within the available space.

All linear drives are modular where the servo drive and hand crank can be repositioned when location and space restraints require. Dual redundant brakes and a manual backup drive (for use when power is off) are also included for system security.

Linear Drive EGL 10 Linear Drive EGL 30 Linear Drive EGL 60
ELG 10 ELG 30 ELG 60
Manual linear gear drive (MLG 10)    
MLG 10    
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  ELG 10 ELG 30 ELG 60
Typical application (weapon caliber) 20 mm
0.78"
105 mm
4.13"
120 mm
4.72"
Nominal output force 10 kN 30 kN 75 kN
Gear ratio 1:1 1.5:1 to 2.62:1 1.5:1 to 4.9:1
Screw pitch 10/15/20/25 mm
0.39/0.59/0.78/0.98"
10/15 mm
0.39/0.59"
10/15 mm
0.39/0.59"
Rigidity with motor shaft blocked >50 MN/m >90 MN/m >200 MN/m
Backlash with motor shaft blocked <0.1 mm <0.05 mm <0.05 mm
Approx. weight with motor and manual backup 25 kg
55.11 lb
49 kg
108.02 lb
85 kg
187.39 lb
Typical dimensions (l x w x h) mm 650 x 90 x 232
25.59 x 3.54 x 9.13"
875 x 192 x 246*
34.45 x 7.56 x 9.69"
750 x 255 x 300
29.53 x 10.04 x 11.81"

Notes:

  • * without a hand crank
  • Working stroke in accordance with requirements

 

  MLG 10
Typical application (weapon caliber) 20 mm
0.78"
Nominal output force 10 kN
Gear ratio motor: screw 1:1
Screw pitch 5/10 mm
0.39/0/59"
Backlash <0.2 mm
Approx. weight 12 kg
26.45 lb
Typical dimensions (l x w x h) mm 490 x 90 x 130 mm
19.29 x 3.54 x 5.12"
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