HRX-R SERIES

The THK LM Guide HRX/R Series represents a significant advancement in linear motion technology, featuring a full roller, 4-way equal load design that delivers unparalleled rigidity, precision, and longevity in demanding applications. This model utilizes cylindrical rollers arranged in a unique configuration where loads are uniformly distributed across all four cardinal directions—radial, reverse radial, and lateral forces are all supported with equal capacity. This 4-way equal load structure ensures exceptional stability and resistance to moment loads, making the HRX/R Series ideal for environments subject to complex force interactions and heavy operational stresses.

Key technical features of the HRX/R Series include its full roller contact system, which maximizes the contact area between the rollers and raceways. This design minimizes elastic deformation under load, significantly enhancing rigidity and positional accuracy. The rollers are precision-ground and manufactured to exacting tolerances, ensuring smooth, consistent motion with minimal friction. The guide is equipped with a patented retainer system that prevents roller-to-roller contact, reducing wear and extending service life even at high speeds. Additionally, the HRX/R Series incorporates advanced sealing technologies to protect against contaminants such as dust, chips, and moisture, maintaining performance in harsh industrial environments. Pre-loaded options are available to eliminate backlash, providing precise, repeatable motion critical for high-accuracy applications.

Performance advantages of this LM Guide are substantial, offering higher load capacities and stiffness compared to traditional ball-based guides. The full roller design allows for greater load distribution, resulting in a longer rated life and reduced maintenance requirements. Its ability to handle heavy loads and moment forces with minimal deflection ensures consistent precision in positioning tasks. The low friction characteristics contribute to smoother motion, reduced energy consumption, and lower heat generation, enhancing overall system efficiency. These attributes make the HRX/R Series capable of operating at higher speeds and accelerations without sacrificing accuracy or durability.

Typical applications for the THK HRX/R Series span a wide range of industries where reliability and precision are paramount. In industrial machinery, it is commonly used in heavy-duty CNC machining centers, grinding machines, and milling equipment that require robust support for high-load cutting operations. Within automotive manufacturing systems, the HRX/R Series is employed in robotic welding arms, precision assembly lines, and transfer systems that demand rigorous performance under continuous operation. In the realm of precision equipment, these guides are integral to semiconductor manufacturing apparatus, optical positioning stages, and precision measuring instruments where nanometer-level accuracy and stability are essential. The HRX/R Series’ resilience and precision also make it suitable for applications in aerospace component fabrication and large-scale material handling systems, ensuring reliable performance in the most challenging operational conditions.

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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
HRX 55R LM Guide
80
100
180.2
135
370
HRX 55LR LM Guide
80
100
229.7
170
498
HRX 65R LM Guide
100
126
239.1
206
567
HRX 65LR LM Guide
100
126
304.1
257
756
HRX 25R LM Guide
40
48
99.6
26.3
73.1
HRX 25LR LM Guide
40
48
116.4
30.8
89.3
HRX 30R LM Guide
45
60
110.6
39.4
105
HRX 30LR LM Guide
45
60
135.1
48
135
HRX 35R LM Guide
55
70
123.2
56
150
HRX 35LR LM Guide
55
70
151.2
68.9
196
HRX 45R LM Guide
70
86
150.7
94.3
250
HRX 45LR LM Guide
70
86
185.7
116
327