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Detailed Parts Diagram And Materials of A Ball Screw Jack

A ball screw jack is a high-efficiency mechanical actuator that uses recirculating ball bearings to convert rotational motion into linear motion. It consists of a gearbox—typically containing a worm gear set—and a ball screw assembly. Worm Gear (Drive Sleeve): The internal gear that mates with the worm shaft; in translating designs, the ball screw passes through its center. Ball Screw Shaft: A precision-threaded rod with helical grooves that provides the linear lifting or moving action. Ball Nut Assembly: Contains the recirculating bearing balls that roll between the nut and the screw grooves.
Availability:
Quantity:
  • KMB10 - KMB300

  • KEMUSEN

We supply high-quality materials for square ball screw jacks, typically produce the best-performing worm gear ball screw jacks. Below is a summary of the various materials used in ball screw jack construction.

KMB1

1. Housing is aluminum alloy with anodizing (KMB10, KMB25), nodular cast iron (KMB25 - KMB300). Custom 304 stainless steel

2. Input shaft (worm) is 45# steel, heat treatment process. Custom 304 or 316 stainless steel.

3. Internal wormgear is aluminum bronze.

4. Ball screw is SCM450 alloy steel. Hardness: HRC 58-62.

5. Ball nut is SCM415H alloy steel. Hardness: HRC 58-62.

6. Steel ball is SUJ2 bearing steel. Hardness: HRC 60

7. Bearing is chromium bearing steel. Custom 304 stainless steel.

KMA1

KMB0

Note: Ball Screws and Nuts are made from hardened alloy steel with hardened bearing balls carrying the load between nut and screw.

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SCREW JACKS & LIFTING SYSTEMS

LINEAR ACTUATORS & GEARBOXES

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Address: No.15, Jingfu Road, 
Xiabian, Chang'an, Dongguan, Guangdong, China
Phone: +86-137-1229-1184
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