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ActionJac 75-MSJ-IK 32:1

Inch Worm Gear Machine Screw Jack, Inverted Keyed, 75 Ton Capacity, 32:1 Gear Ratio Read More
Product Specifications

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Product Specifications

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Specifications Diagram

Details

Capacity [Ton]:
75
Gear Ratio:
32:1
Turns of Worm per Inch Travel:
48
Torque to Raise 1 lb. [in-lb]:
0.0290
Lifting Screw Diameter [in]:
5.00
Screw Lead [in]:
0.667
Root Diameter [in]:
4.286
Tare Drag Torque [in-lb]:
155

Performance Specifications

Maximum Allowable Input [hp]:
9.00
Maximum Input Torque [in-lb]:
3780
Maximum Worm Speed at Rated Load [rpm]:
130
Maximum Load at 1750 RPM [lb]:
11180
Starting Torque:
2 x Running Torque

Weight

Base 0 Travel [lb]:
310
Per Inch of Travel [lb]:
6.50
Grease [lb]:
9.0

More Details

A Keyed Machine Screw Jack has a keyway machined along the length of the lifting screw. A matching key is fastened to the cover of the jack which will eliminate lift shaft rotation. The keyway in the screw causes greater than normal wear on the internal drive sleeve threads, somewhat reducing jack life.

A Inverted translating jack has a lifting shaft that moves through the gear box. The lift shaft extends out from the bottom of the worm screw jack. A nut is integrated with the worm gear such that the worm gear and nut rotate together. When the lift shaft is held to prevent rotation, the lift shaft will move linearly through the gear box to move the load.