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Question:

Simple manual lifting mechanism, a nut a bolt can

Simple manual lifting mechanism, a nut a bolt can

Answer:

The lifting device does not have to be bearing, the screw is long, it is fixed in the round hole of the bottom panel, and the spiral of the screw is lowered by the spin of the screw
The next face is worn, welding a circle, ok turn, rise, also can not be fixed, also can rise! The general problem is not too big, it's a two-point position, if it's fixed at three points, it's high in accuracy
Handle is fixed below the floor below need not fixed, it is not fixed under the base plate is fixed, the floor below the retaining common shim fix the quotas for marketing or for cap.

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