QHH Low noise Linear guides rail 1000-6000mm

The QHH linear guide rail is a silent, heavy-duty linear sliding rail, designed with low noise, high load capacity, and maintenance-free operation. It is particularly suitable for applications requiring high precision and noise reduction, such as automated equipment, robotic arms, and precision instruments.

Its core advantage lies in the **low-noise design**, which evenly arranges the ball bearings through a synchronous coupling, effectively reducing high-frequency noise by approximately 7.7 decibels compared to the old series. Additionally, it employs **self-lubricating technology**, with oil storage space continuously lubricating the steel balls to reduce maintenance frequency. The factory-applied grease can sustain operation for over 2,500 kilometers under 0.2 times the dynamic load.

Structurally, the QHH series features a four-row ball design with a contact angle of 45°, ensuring balanced load capacity in all four directions, high rigidity, and further stability enhancement through preloading. The product line ranges from QHH15CA to QHH45HA, supporting customization and free cutting. It is compatible with the HG series mounting dimensions, facilitating easy replacement.