Upright Keyed Features

The lift shaft of a translating style jack must be attached to something which prevents the lift shaft from rotating. If it is not, the lift shaft (and the load) will turn and not translate. A feature can be added to a machine screw jack to prevent lift shaft rotation. This type of jack is referred to as a “keyed jack” and is available in translating models.

Anti-rotation is accomplished by a square guide attached to the screw translating inside a square stem cover attached to the jack. The square stem tube is supplied with lube fittings.

Please choose from the following Upright Keyed categories

Please select a product below to proceed.

Details
Product Capacity [kN] Gear Ratio Raise for One Turn of Worm [mm] Torque to Raise 1 kN [Nm] Lifting Screw Diameter [mm] Screw Lead [mm]
G1-BSJ-UK 2:1
  15 2:1 2.50 0.53 25 5
G1-BSJ-UK 3:1
  15 3:1 1.60 0.34 25 5
G2-BSJ-UK 2:1
  50 2:1 2.50 0.53 40 5
G2-BSJ-UK 3:1
  50 3:1 1.60 0.34 40 5
G2HL-BSJ-UK 2:1
  50 2:1 5.00 1.06 32 10
G2HL-BSJ-UK 3:1
  50 3:1 3.33 0.71 32 10
G3-BSJ-UK 2:1
  90 2:1 5.00 1.06 63 10
G3-BSJ-UK 3:1
  90 3:1 3.33 0.71 63 10