Introduction

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Our production of the PMI ball screws has adopted a manufacturing 

process and equipment unlike other manufacturers. Combining advanced skills and the Bad Düben digital electric screw thread rolling machine, we adhere to a strict quality control policy at every stage of production, from the selection of ball screw material and rolled processing to the induction hardening heat treatment and post production. We are committed to providing clients with products of the best quality.

 

The combination of rolled ball screws and ground nuts has replaced the traditional ACME screws and trapezoidal screws. This makes for a smoother operation while reducing friction and backlash. Moreover, the new technology has the advantage of faster production speed and lower prices.

 

Besides the differences in the definition of lead deviation and geometric tolerance, rolled and ground ball screws can both eliminate axial play by preloading.