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What is the difference between a Machine Screw Jack and a Ball Screw Jack?

April 26, 2017Ball Jack Machine screw

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What is the difference between a Machine Screw Jack and a Ball Screw Jack?

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The machine screw jack uses an acme thread form and is typically self-locking meaning it will hold its position without a brake. Ball Screw jacks use ball screws and nuts to convert rotary to linear movement using approximately 1/3 the horsepower required by a machine screw. Due to the efficiency of the Ball Screw jack, brakes must be used to stop and hold the load screw in position. Brakes are also recommended for all jacks if vibration is present.