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ActionJac 20HL-BSJ-IR 8:1

Inch Worm Gear Ball Screw Jack, Inverted Rotating, 20 Ton Capacity, 8:1 Gear Ratio, Screw Lead 1" Read More
Product Specifications

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Product Specifications

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Specifications Diagram

Details

Capacity [Ton]:
20
Gear Ratio:
8:1
Turns of Worm per Inch Travel:
8
Torque to Raise 1 lb. [in-lb]:
0.0313
Lifting Screw Diameter [in]:
2.25
Screw Lead [in]:
1.000
Root Diameter [in]:
1.850
BackDrive Holding Torque [ft-lb]:
54.0
Tare Drag Torque [in-lb]:
40

Performance Specifications

Maximum Allowable Input [hp]:
7.50
Maximum Input Torque [in-lb]:
1253
Maximum Worm Speed at Rated Load [rpm]:
377
Maximum Load at 1750 RPM [lb]:
8629
Starting Torque:
1.5 x Running Torque

Weight

Base 0 Travel [lb]:
85
Per Inch of Travel [lb]:
1.50
Grease [lb]:
2.2

More Details

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.