SRS5GN SERIES

The THK LM Guide SRS5GN Series represents a compact, high-performance linear motion solution engineered for applications where space constraints and precision are paramount. This miniature full-ball type LM Guide incorporates a unique design where the ball rolling grooves are precision-ground into both the rail and the block, forming a Gothic arch structure. This configuration provides four contact points for each ball, ensuring high rigidity, exceptional accuracy, and smooth, stable motion with minimal friction. The series is characterized by its compact cross-sectional dimensions, making it an ideal choice for miniaturized equipment and devices requiring a small footprint without compromising on load capacity or guiding precision.

Key technical features of the SRS5GN Series include its full-ball, recirculating design, which maximizes the number of load-bearing balls within the compact block. This design directly contributes to a high load rating and stiffness. The components are manufactured from high-carbon chromium bearing steel, heat-treated to achieve a surface hardness that ensures long-term durability and wear resistance. The integrated seals are highly effective at preventing the ingress of contaminants like dust and debris, while simultaneously retaining the grease lubrication within the system. This combination significantly extends the operational life and maintains consistent performance even in environments with moderate particulate contamination.

The performance advantages of this series are substantial for precision-driven industries. Its compact size allows for direct integration into slender mechanisms, reducing the overall size and weight of the final assembly. The high rigidity and accuracy enable precise positioning and repeatability, which is critical in automated processes. Furthermore, the low friction coefficient translates into high efficiency, requiring less driving force and contributing to energy savings. The sealed design ensures reliable, maintenance-free operation over extended periods, reducing downtime and total cost of ownership.

Typical applications for the THK SRS5GN LM Guide are found across a spectrum of high-tech industries. In industrial machinery, it is extensively used in the linear axes of compact CNC machining centers, precision assembly robots, and the sliding bases of semiconductor and electronic component manufacturing equipment. Within the automotive sector, these guides are employed in precision testing and measurement instruments, as well as in automated assembly systems for small components. In the realm of precision equipment, the SRS5GN is a critical component in medical devices, optical instruments, and laboratory automation systems where smooth, precise, and reliable linear motion is non-negotiable. Its miniature profile and robust performance make it a fundamental building block for advancing miniaturization and automation across modern manufacturing and technology sectors.

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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
SRS 5GN LM Guide
6
12
20.1
448
703