THK’s LM Guide NR X/NR LRX SERIES represents a significant advancement in linear motion technology, specifically engineered to manage ultra-heavy loads with exceptional precision and reliability. This full ball type, radial configuration guide is designed for the most demanding industrial applications where high load capacity, rigidity, and long-term accuracy are non-negotiable. The series incorporates a unique ball circulation system that ensures smooth, uninterrupted motion even under extreme conditions, minimizing friction and wear while maximizing operational lifespan.
Key technical features of the NR X/NR LRX SERIES include its robust construction with a reinforced housing and specially hardened steel tracks, providing superior resistance to deformation under heavy radial loads. The full ball design maximizes the contact area between the balls and raceways, distributing load evenly and reducing stress concentrations. This results in a significantly higher load rating compared to standard linear guides. Pre-loaded ball assemblies eliminate internal clearance, enhancing system rigidity and positioning accuracy. Additionally, the inclusion of advanced seals and wipers protects against contaminants such as dust, chips, and moisture, ensuring consistent performance in harsh environments. Optional configurations include custom lengths, lubrication units, and corrosion-resistant treatments to suit specific operational needs.
Performance advantages are immediately evident in its ability to sustain ultra-heavy loads without sacrificing smoothness or precision. The low friction coefficient translates to reduced power consumption and lower heat generation, contributing to energy efficiency and extended component life. High rigidity minimizes deflection during operation, maintaining alignment and repeatability even under dynamic or moment loads. The design also dampens vibrations, leading to quieter operation and reduced transmission of shocks to connected machinery. Maintenance requirements are minimal due to the efficient lubrication retention and contamination exclusion features, reducing downtime and total cost of ownership.
Typical applications span industries where heavy-duty precision is critical. In industrial machinery, the NR X/NR LRX SERIES is integral to large-scale CNC machining centers, heavy-duty milling machines, and precision grinding equipment, where it supports massive workpieces and cutting forces. Within automotive manufacturing, it is employed in robotic welding systems, automated assembly lines, and stamping presses, handling high loads with repeatable accuracy. In precision equipment, it finds use in semiconductor fabrication tools, large-scale coordinate measuring machines (CMMs), and optical positioning systems, where stability and minimal deviation are essential. Its versatility also extends to aerospace component handling, metal forming presses, and heavy material handling systems, demonstrating its capability to enhance productivity and reliability 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 | |
31 |
50 |
102 |
45.4 |
90.8 |
|
38 |
60 |
120.5 |
66.9 |
130.8 |
|
44 |
70 |
135 |
89.6 |
169.1 |
|
52 |
86 |
171 |
132 |
255.8 |
|
63 |
100 |
200.5 |
175.1 |
338.4 |
|
75 |
126 |
246 |
268.9 |
505.5 |
|