Double Clevis Features

Inverted Rotating Machine Screw Jacks - 1 Ton to 10 Ton

Double Clevis Jacks are used when it is necessary to move a load through an arc, such as tracking antennas, hinged doors or air dampers. One clevis is mounted on the end of the lift shaft and the other clevis is welded to a heavy duty stem cover, which is welded to the housing. Depending on size, Double clevis designs are available with optional accessories such as boots, motor mounts, right-angle reducers, motors, encoders and rotary limit switches.

Note:

Mounting hardware for double clevis jacks should be specified as heat treated alloy steel clevis pins with at least 100,000 psi ultimate tensile strength.

Double clevis jacks used horizontally will have reduced column strength and life. For most horizontal applications, Nook recommends the use of an Electric Cylinder (contact Nook Engineering for more information).

Depending on size, Double Clevis designs are available with optional accessories such as boots, motor mounts, right-angle reducers, motors, encoders and rotary limit switches.

Please choose from the following Double Clevis categories

Please select a product below to proceed.

Details Performance Specifications
Product Capacity [Ton] Gear Ratio Turns of Worm per Inch Travel Torque to Raise 1 lb. [in-lb] Lifting Screw Diameter [in] Screw Lead [in] Maximum Allowable Input [hp] Maximum Input Torque [in-lb] Maximum Worm Speed at Rated Load Non-keyed [rpm] Maximum Load at 1750 RPM Non-keyed [lb]
ActionJac 1-MSJ-DC 5:1
  1 5:1 25 0.0225 0.75 0.200 0.50 45 700 800
ActionJac 1-MSJ-DC 20:1
  1 20:1 100 0.0105 0.75 0.200 0.25 21 750 857
ActionJac 2-MSJ-DC 6:1
  2 6:1 24 0.0250 1.00 0.250 2.00 100 1260 2881
ActionJac 2-MSJ-DC 12:1
  2 12:1 48 0.0154 1.00 0.250 1.50 62 1525 3486
ActionJac 2-MSJ-DC 24:1
  2 24:1 96 0.0105 1.00 0.250 0.50 42 750 1715
ActionJac 2R-MSJ-DC 6:1
  2 6:1 24 0.0250 1.00 0.250 2.00 100 1260 2881
ActionJac 2R-MSJ-DC 12:1
  2 12:1 48 0.0154 1.00 0.250 1.50 62 1525 3486
ActionJac 2R-MSJ-DC 24:1
  2 24:1 96 0.0105 1.00 0.250 0.50 42 750 1715
ActionJac 2.5-MSJ-DC 6:1
  2.5 6:1 24 0.0252 1.00 0.250 2.00 126 1000 2858
ActionJac 2.5-MSJ-DC 12:1
  2.5 12:1 48 0.0148 1.00 0.250 1.50 74 1277 3650
ActionJac 2.5-MSJ-DC 24:1
  2.5 24:1 96 0.0106 1.00 0.250 0.50 53 594 1699
ActionJac 5-MSJ-DC 6:1
  5 6:1 16 0.0376 1.50 0.375 3.00 376 500 2873
ActionJac 5-MSJ-DC 24:1
  5 24:1 64 0.0144 1.50 0.375 0.75 144 330 1875
ActionJac 10-MSJ-DC 8:1
  10 8:1 16 0.0377 2.00 0.500 5.00 753 418 4776
ActionJac 10-MSJ-DC 24:1
  10 24:1 48 0.0192 2.00 0.500 1.50 384 246 2813
ActionJac 15-MSJ-DC 8:1
  15 8:1 16 0.0407 2.25 0.500 5.00 1221 258 4424
ActionJac 15-MSJ-DC 24:1
  15 24:1 48 0.0218 2.25 0.500 1.50 654 144 2478