HIWIN QHW45HA QH Series Linear Guide QHW45HA QHW45CA Block

The HIWIN QH series linear guide is a high-speed, low-noise, and high-rigidity silent heavy-duty ball linear guide. It is developed based on the standard HG series four-row single-circular-arc tooth contact structure and innovatively incorporates the patented SynchMotion™ (synchronizing coupling) technology.

Core Technologies and Features of the QH Series Linear Guide

Low Noise Design: Thanks to the synchronous coupling, the metallic sound of the balls colliding is effectively eliminated. Compared to ordinary guides, its high-frequency operating noise is reduced by approximately 5 decibels.

Excellent Smooth Motion: When the slider starts, all balls begin circulating almost simultaneously, eliminating resistance fluctuations caused by disordered ball collisions in traditional guides, resulting in extremely smooth motion.

Built-in Oil Reservoir and High Lubrication Efficiency: The synchronous coupling features a patented oil reservoir, allowing grease to be precisely and persistently applied to the ball surfaces, significantly extending maintenance intervals and improving service life.

Completely interchangeable with the HG series: The QH series linear guides share the same mounting dimensions and slide rails as HIWIN’s most commonly used HG series. Engineers can directly upgrade to silent guides without modifying the mechanical design.

The QHW45HA linear guide is widely used in semiconductor manufacturing equipment, electronic automated production lines, medical and biological testing machines, high-speed CNC machine tools, and precision measuring instruments due to its quiet operation and low dust generation characteristics.