THK’s LM Guide NRS X NRS LR SERIES represents a significant advancement in linear motion technology, specifically engineered to handle ultra-heavy loads with exceptional stability and precision. This full ball type, 4-way equal load design features a unique configuration where the ball rolling grooves are arranged in both the radial and reverse radial directions, allowing the LM block to support substantial loads from all four primary directions—radial, reverse radial, and lateral. This balanced load distribution is critical for applications demanding high rigidity and minimal deformation under extreme forces.
Key technical features of the NRS X NRS LR SERIES include its high load capacity, achieved through optimized ball circulation and a robust structural design that minimizes elastic deformation. The LM guide incorporates a full ball contact system, ensuring smooth motion and extended service life even under rigorous operating conditions. Enhanced sealing mechanisms protect against contaminants such as dust, chips, and moisture, making it suitable for harsh industrial environments. Additionally, the series offers precise positioning accuracy and repeatability, supported by THK’s advanced manufacturing tolerances and surface finishing techniques.
Performance advantages are evident in its ability to maintain operational stability under ultra-heavy loads, reducing vibration and noise while improving overall system efficiency. The low friction coefficient of the full ball design results in reduced energy consumption and heat generation, contributing to longer maintenance intervals and higher productivity. Its compact design allows for space-saving integration into machinery without compromising on load-bearing capabilities.
Typical applications span across industries where reliability under heavy loads is paramount. In industrial machinery, the NRS X NRS LR SERIES is ideal for heavy-duty CNC machining centers, press feeds, injection molding machines, and material handling systems, where it ensures precise linear motion under high thrust and moment loads. In automotive manufacturing, it supports robotic welding arms, assembly line transporters, and testing equipment that require durability and accuracy. For precision equipment, this LM guide is used in semiconductor manufacturing devices, optical positioning stages, and medical imaging systems, where smooth, backlash-free movement is essential for achieving micron-level precision. By combining heavy-load resilience with precision engineering, THK’s NRS X NRS LR SERIES delivers a reliable solution for demanding motion control challenges across diverse sectors.
| Model No. | Outer dimensions | Basic load rating | |||
| Radial | |||||
| Height M |
Width W |
Length L |
Dynamic rating C |
Static rating C0 |
|
| mm | mm | mm | kN | kN | |
90 |
156 |
302.8 |
342 |
687 |
|
105 |
200 |
326.2 |
470 |
920 |
|
83 |
145 |
274 |
278 |
566 |
|