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Bevel Gear Ball Screw Jacks incorporate a ground spiral bevel gear set paired with a ball screw lift shaft to move the load. The high efficiency of the ball screw results in a high load capacity and low input torque requirement. The hardened spiral toothed bevel gear transmission allows high lifting speeds and greater duty cycles. These jacks are built to specification and can be combined into arrangements consisting of multiple jacks.
Model | Gear Ratio | Capacity (kN) | Lifting Screw Dia (mm) | Screw Lead (m) | Raise for One Turn of Worm (mm) | Max Input Torque(N-m | Torque to Raise 1 kN (N-m) | Back Drive Holding Torque (N-m) | Tare Drag Torque (N-m) | Dynamic Load Cap (kN) |
---|---|---|---|---|---|---|---|---|---|---|
G1 | 2:1 | 15 | 25 | 5 | 2.5 | 50 | 0.53 | 2.68 | 1.8 | 2.3 |
3:1 | 15 | 25 | 5 | 1.6 | 50 | 0.34 | 1.16 | 1.7 | 2.3 | |
G2 | 2:1 | 50 | 40 | 5 | 2.5 | 175 | 0.53 | 9.64 | 2.3 | 23.8 |
3:1 | 50 | 40 | 5 | 1.6 | 175 | 0.34 | 5.44 | 2.2 | 23.8 | |
G2-HL | 2:1 | 50 | 32 | 10 | 5 | 175 | 1.06 | 21.57 | 2.3 | 33.4 |
3:1 | 50 | 32 | 10 | 3.33 | 175 | 0.71 | 13.70 | 2.2 | 33.4 | |
G3 | 2:1 | 90 | 63 | 10 | 5 | 1600 | 1.06 | 38.57 | 4.4 | 76.0 |
3:1 | 90 | 63 | 10 | 3.33 | 1600 | .071 | 31.47 | 4.3 | 76.0 |
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Family
Size
Type
Ratio
Screw Type
Stroke
Screw End
End Fitting
Bellows
Nut
Special Features
Screw Dimensions
Rotating Screw - R
The rotary motion of precision worm gearing (worm shaft and internally threaded worm wheel) is converted into axial linear motion of the screw, which travels through the gear box housing. The load is attached to the end of the screw.
Rotating Nut, with or without anti-rotation (axial translating Screw) - N or V
Driven by a precision worm gearing (worm shaft and worm wheel), the rotary motion of the screw is translated into linear motion of the travelling nut on the screw.
High Speed - One full turn of the worm shaft leads to a stroke of one millimeter.
Low Speed - One full turn of the worm shaft leads to a stroke of 0.25 mm.
The stroke length of the screw jack.
Choose from a standard screw end or a custom end.
Bellow cover for protection against external influences. Suitable for horizontal or vertical installation.
Prevents the screw from being removed from the jack gearbox. Fitted as standard on ball screw versions N and V. Optionally available for screw jacks with trapezoidal screws. The stop collar cannot be used as a fixed stop.
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