End Cap Series Ball Screws for Precision Machinery | Motiontek

What Are End Cap Series Ball Screws?

End cap series ball screws are precision motion transmission components designed for CNC machines, automation equipment, and industrial robots that demand both high accuracy and high speed. Unlike conventional internal-circulation ball screws, the end cap series adopts an external ball return structure, allowing the recirculating balls to travel smoothly through the nut via hardened end caps. This structure minimizes friction, improves lubrication flow, and reduces noise levels during high-speed operation.

Ball screws convert rotary motion into linear motion efficiently through the rolling of precision balls between the screw shaft and nut. By replacing sliding contact with rolling motion, they dramatically improve transmission efficiency—often exceeding 90% mechanical efficiency—while ensuring stable positioning and repeatable accuracy.

As a professional Chinese ball screw supplier, Motiontek focuses on precision manufacturing and durability. Our End Cap Series Ball Screws are produced using CNC thread grinding, heat treatment, and automated assembly to achieve tight tolerance control. Each screw undergoes 100% inspection for lead accuracy, preload, and axial play, ensuring long-term performance under demanding conditions.

These ball screws are widely used in CNC machining centers, injection molding machines, laser cutters, semiconductor equipment, and automated positioning systems. They are ideal for customers seeking a reliable motion component with low noise, high rigidity, and consistent quality from a trusted Chinese ball screw manufacturer.

Whether for standard catalog items or OEM customization, Motiontek provides full technical support — from design verification to batch production. Our engineering team can assist with end machining, nut flange design, and lubrication selection, helping customers achieve optimal performance in every project.