ActionJac 20-MSJ-IR 8:1

Inch Worm Gear Machine Screw Jack, Inverted Rotating, 20 Ton Capacity, 8:1 Gear Ratio

A Inverted Rotating Screw Jack has a lift shaft that moves a nut as it turns. The lift shaft is fixed to the worm gear. This causes the load, which is attached to the travel nut, to move along the lift shaft. A Inverted Roating Screw jacks has the lift shaft extending out the bottom of the jack.

To configure a part number, download 2D/3D models, or request a quote, please select the "Quote or Download" tab and click the "Configure" button. (Step 4 of 4)

Product ActionJac 20-MSJ-IR 8:1
Capacity [Ton] 20
Gear Ratio 8:1
Turns of Worm per Inch Travel 16
Torque to Raise 1 lb. [in-lb] 0.0435
Lifting Screw Diameter [in] 2.50
Screw Lead [in] 0.500
Root Diameter [in] 1.908
Tare Drag Torque [in-lb] 40
Performance Specifications
Maximum Allowable Input [hp] 7.50
Maximum Input Torque [in-lb] 1740
Maximum Worm Speed at Rated Load [rpm] 272
Maximum Load at 1750 RPM [lb] 6209
Starting Torque 2 x Running Torque
Base 0 Travel [lb] 80
Per Inch of Travel [lb] 1.80
Grease [lb] 2.3

To continue, please configure your item below.

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