Screw jack

Details Screw jack Screw jack

B - Operations, Transporting

66

F

B66F 3/08 (2006.01) B66F 3/10 (2006.01) B66F 13/00 (2006.01)

Patent

CA 2353717

The present invention relates to a screw jack that has a thin metal bearing for supporting a main screw shaft of a jack body to lift the jack body high as possible so that a torque increase can be kept to a minimum. For this purpose, the metal bearing is mounted and configured to have a substantially large outer diameter, and also a small stepped sliding-surface is formed on the top or bottom surface of the metal bearing.

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