HSR-M1YR SERIES

The THK LM Guide HSR M1YR SERIES represents a specialized evolution in linear motion technology, engineered specifically for high-temperature environments where conventional guides would falter. As a full ball type LM Guide, it incorporates a recirculating ball bearing system within a robust structure, ensuring smooth, precise linear movement even under extreme thermal conditions. This series is designed to maintain operational integrity and performance consistency in applications where ambient temperatures or process-generated heat would typically degrade lubrication, induce thermal expansion, or accelerate wear in standard linear guides.

Key technical features define the HSR M1YR’s capability to withstand thermal challenges. Its core innovation lies in a heat-resistant design, utilizing specially selected materials for critical components like the ball retainers and end seals. These materials are formulated to resist softening, cracking, or outgassing at elevated temperatures. The lubrication system is another critical aspect; it is pre-packed with a high-temperature grease that retains its viscosity and lubricating properties, preventing drying, carbonization, or breakdown that leads to increased friction and eventual system seizure. The full ball contact design between the rail and the block ensures high rigidity and load capacity, distributing forces evenly across a large contact area for superior stability and accuracy. Furthermore, the integrated seals are engineered to remain pliable and effective, providing a robust defense against contaminants like dust, chips, and splashing liquids, which is crucial in harsh industrial settings.

The performance advantages derived from these features are significant. The most prominent is exceptional thermal stability, allowing the guide to operate reliably in environments exceeding the limits of standard models, thereby reducing downtime for cooling or maintenance. This directly translates to enhanced machine uptime and productivity. The maintained lubrication integrity ensures consistent, low-friction motion over extended periods, which preserves positioning accuracy and repeatability—a non-negotiable requirement in precision manufacturing. The high rigidity and load capacity contribute to reduced vibration and deflection under load, leading to improved machining quality and surface finishes. From a lifecycle perspective, the robust construction and specialized materials result in reduced wear rates, extending the service interval and lowering the total cost of ownership by minimizing unplanned failures and component replacements.

Typical applications for the HSR M1YR SERIES are found in industries where high temperatures are an inherent part of the process. In industrial machinery, it is indispensable for furnace door mechanisms, heat treatment handling equipment, injection molding machines near heating barrels, and die-casting equipment. The automotive industry utilizes these guides in manufacturing processes such as painting and curing ovens, engine component test stands, and brake disc manufacturing lines where components are handled at high temperatures. Within precision equipment, they are critical for semiconductor manufacturing apparatus, including wafer processing stations and inspection systems that operate in thermally demanding cleanroom environments. Any application demanding precise, reliable linear motion where heat is a persistent factor is a candidate for the robust performance of the HSR M1YR SERIES.

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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
HSR 15M1YR LM Guide
28
33.5
59.6
10.9
15.7
HSR 20M1YR LM Guide
30
43.5
76
19.8
27.4
HSR 25M1YR LM Guide
40
47.5
83.9
27.6
36.4
HSR 30M1YR LM Guide
45
59.5
98.8
40.5
53.7
HSR 35M1YR LM Guide
55
69.5
112
53.9
70.2