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Global Standard sizeModel HSR

The THK LM Guide HSR series represents a globally standardized linear motion solution engineered for precision and durability in demanding industrial applications. As a full ball type linear guide, it incorporates a unique four-row circular arc groove design with a 45-degree contact angle, creating optimized load distribution across all directions. Each LM block contains precisely arranged recirculating balls that circulate endlessly through the load zones and return paths, ensuring smooth motion with minimal friction fluctuations. The HSR’s compact yet robust structure features integrated seals at both ends—including metal scrapers and grease-resistant seals—that effectively prevent contamination from dust, chips, and other particulate matter while retaining lubrication for extended service intervals.

Technical superiority defines the HSR series through its exceptional rigidity and load capacity. The four-directional equal load characteristic allows the guide to handle radial, reverse-radial, and lateral loads simultaneously with high moment resistance, making it exceptionally stable under complex force conditions. Precision grinding of all critical surfaces ensures consistent accuracy and smooth rolling motion, while the optimized ball groove geometry minimizes elastic deformation under load. These guides achieve remarkable positioning precision with running parallelism errors controlled within strict tolerances, backed by THK’s proprietary C1-C5 clearance grades that allow precise preload adjustment for specific application requirements. The standardized dimensions ensure full interchangeability across global markets, simplifying maintenance and replacement procedures.

Performance advantages manifest in several critical areas that directly impact operational efficiency. The HSR demonstrates significantly lower friction coefficients compared to conventional sliding mechanisms, reducing power consumption by up to 90% while enabling higher speeds and accelerations. Its maintenance-free operation eliminates periodic adjustment needs, and the effective sealing system ensures reliable performance even in contaminated environments. The guide’s high rigidity translates to minimal deflection under load, maintaining accuracy throughout the stroke length while damping vibrations that could compromise machining quality or measurement precision. With noise levels substantially reduced compared to alternative linear motion systems, the HSR creates quieter working environments suitable for precision manufacturing facilities and laboratory settings.

Industrial applications span diverse sectors where precision linear motion is paramount. In automated manufacturing systems, HSR guides provide the foundation for high-speed machining centers, CNC equipment positioning tables, and industrial robot seventh-axis traverse mechanisms. The automotive industry utilizes these components in automated welding guns, precision assembly robots, and testing equipment requiring repeatable linear motion. Semiconductor manufacturing equipment relies on HSR guides for wafer handling robots, stepper stages, and inspection systems where sub-micron precision is essential. Additional applications include precision measuring instruments, medical device manufacturing equipment, electronic component assembly systems, and packaging machinery where smooth, accurate linear motion directly impacts product quality and production throughput. The global standardization of the HSR series ensures consistent performance and availability across these diverse applications worldwide.

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HSR-YR-XYR SERIES
THK's LM Guide HSR, HSR YR, XYR, and SERIES represent the global standard in full ball type linear motion systems, engineered to deliver exceptional precision, rigidity, and longevity in demanding industrial applications. These guides feature a unique full ball contact design between the rail and block, ensuring uniform load distribution and minimal elastic deformation under stress. The HSR series, with its four-way equal load capacity, provides high rigidity and stability in all directions—radial, reverse radial, and lateral. Constructed from high-carbon chromium bearing steel, the components undergo rigorous heat treatment to achieve a surface hardness of HRC 58-64, significantly enhancing wear resistance and operational life. The compact, low-profile design of the HSR models allows for space-saving integration, while the inclusion of high-grade seals and grease fittings in variants like the HSR YR ensures effective contamination protection and simplified maintenance. Performance advantages of these LM Guides are substantial, starting with their ability to achieve smooth, near-frictionless motion with precision tolerances as tight as micrometers. The full ball recirculation system minimizes vibration and noise, contributing to quieter operation and reduced mechanical wear. High-speed capabilities are supported by optimized ball circuit designs that prevent skidding and ensure consistent contact, even under rapid acceleration or deceleration. Load capacities are exceptional, with the HSR series capable of handling dynamic loads ranging from 6.5 kN to 70 kN, depending on the model size, making them suitable for both light-duty and heavy-load scenarios. Energy efficiency is another key benefit, as the low friction coefficient reduces power consumption and heat generation, which in turn minimizes thermal expansion and maintains accuracy over prolonged use. Typical applications span across critical sectors where reliability and precision are non-negotiable. In industrial machinery, these LM Guides are integral to CNC machining centers, where they facilitate precise tool positioning and high-speed axis movements in milling, drilling, and grinding operations. They are also widely used in semiconductor manufacturing equipment, such as wafer handlers and photolithography stages, where sub-micron accuracy is essential. Within automotive systems, the HSR series finds application in robotic welding arms, assembly line transfer systems, and engine component testing rigs, enduring high cyclic loads and harsh environments. Precision equipment, including medical devices like MRI scanners and automated laboratory analyzers, relies on these guides for smooth, repeatable motion without backlash. Additionally, they are employed in packaging machinery, printing presses, and aerospace positioning systems, demonstrating their versatility in enhancing productivity and reducing downtime across diverse industries.
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HSR-R-XR SERIES
THK's LM Guide HSR, HSR-R, XR, and SERIES represent the global standard in full-ball type linear motion systems, engineered to deliver exceptional precision, rigidity, and longevity in demanding industrial applications. These guides incorporate a unique full-ball contact design where the load-bearing balls circulate smoothly through a precision-ground raceway, ensuring uniform stress distribution and minimal deformation under load. The HSR series, known for its high load capacity and robust construction, features a four-row, circular-arc groove configuration that provides equal load ratings in all directions—radial, reverse-radial, and lateral. This design is complemented by an integrated end seal and side seal system that effectively excludes contaminants like dust, chips, and moisture, while retaining grease for extended lubrication intervals. The HSR-R variant builds on this with a rail-width retainer that prevents ball dropout during handling, simplifying installation and maintenance. Performance advantages of these LM Guides are substantial, starting with their ability to achieve high positioning accuracy and smooth, low-friction motion, even at high speeds. The full-ball recirculation minimizes vibration and noise, contributing to quieter operation and reduced wear over time. With a compact, space-saving profile, these guides offer high rigidity and stability, allowing for precise repeatability in automated processes. Their corrosion-resistant options, including stainless steel versions, make them suitable for harsh environments, such as those exposed to coolants or washdowns. Additionally, the standardized global sizes ensure interchangeability and easy sourcing, reducing downtime and inventory costs for manufacturers worldwide. Typical applications span across critical sectors, including industrial machinery where these guides are integral to CNC machining centers, grinding machines, and injection molding equipment, providing the backbone for precise tool positioning and heavy-duty cutting operations. In automotive systems, they are deployed in robotic welding arms, assembly line transporters, and precision testing instruments, where reliability and repeatability are paramount for high-volume production. Within precision equipment, the HSR and related series excel in semiconductor manufacturing devices, optical positioning stages, and medical imaging systems, where micron-level accuracy and minimal deflection are essential. By combining advanced materials, meticulous manufacturing tolerances, and proven sealing technology, THK's LM Guide series ensures optimized performance, reduced maintenance, and enhanced productivity across diverse industrial landscapes.
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HSR-LR-XLR SERIES
The THK LM Guide HSR/LR/XLR/SERIES represents the global standard in full-ball type linear motion systems, engineered for precision, durability, and high load capacity across diverse industrial applications. These guides feature a unique full-ball contact design between the rail and block, ensuring uniform stress distribution and enhanced rigidity. The HSR series, known for its high load capacity and compact dimensions, is complemented by the LR series for light-load applications and the XLR series for extra-long strokes, while the SERIES designation underscores THK's standardized, globally compatible sizing for seamless integration. Technical features include four-way equal load capacity, allowing these guides to handle radial, reverse radial, and lateral loads with equal efficiency. The recirculation system employs a patented end cap design with optimized ball groove geometry, minimizing resistance and ensuring smooth, consistent motion even at high speeds. Pre-loaded options are available to eliminate backlash, critical for applications demanding high positional accuracy. Corrosion-resistant models with specialized seals (such as the MK seal) protect against contaminants like dust, chips, and moisture, extending service life in harsh environments. The rails and blocks are manufactured from high-carbon chromium bearing steel, heat-treated to achieve a surface hardness of 58-64 HRC, providing exceptional wear resistance and long-term precision retention. Performance advantages are evident in their ability to sustain high-speed operation with minimal vibration and noise, thanks to the precision-ground raceways and optimized ball circulation. The compact design of the HSR series, for instance, allows for space-saving machine layouts without compromising load capacity—supporting moment loads up to three times that of conventional designs. Efficiency gains are realized through reduced friction coefficients, which lower energy consumption and minimize heat generation. Maintenance requirements are minimal due to the sealed lubrication units and durable construction, reducing downtime and total cost of ownership. Typical applications span industrial machinery, where HSR guides are deployed in CNC machining centers for precise table movement, or in automated assembly lines for robotic positioning arms. In automotive systems, they facilitate accurate motion in welding robots, component transfer systems, and engine assembly equipment, where high rigidity and contamination resistance are paramount. Precision equipment such as semiconductor manufacturing tools, optical inspection devices, and medical imaging systems rely on the SERIES guides for sub-micron level accuracy and smooth, stiction-free motion. The LR series finds use in lighter-duty applications like packaging machinery or laboratory automation, while the XLR series supports long-span gantry systems in material handling or large-format additive manufacturing. By combining standardized dimensions with robust performance, THK's LM Guide series enables engineers to achieve reliable, high-precision linear motion across global manufacturing and technology sectors.
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HSR-LC-XLC SERIES
THK's LM Guide HSR Series represents the global standard for full-ball type linear motion systems, delivering exceptional precision, rigidity, and longevity in demanding applications. These guides feature a unique full-ball contact design between the rail and block, where the entire complement of load-carrying balls makes simultaneous contact along the raceway. This configuration maximizes load capacity and stiffness while minimizing elastic deformation under stress. The HSR, HSR-LC (Low Clearance), and HSR-XLC (Extra Low Clearance) variants cater to specific installation requirements, with the LC and XLC models offering progressively tighter dimensional tolerances for space-constrained designs without sacrificing performance. All models in this series incorporate THK's advanced sealing technology, including multi-layer seals and optional scrapers, which effectively exclude contaminants like dust, chips, and moisture while retaining lubrication. This results in maintenance-free operation even in harsh environments. The precision-ground raceways and optimized ball circuit geometry ensure smooth, consistent motion with minimal friction and exceptional positional accuracy. Performance advantages of the HSR Series stem directly from its engineering innovations. The full-ball contact design provides up to four times the rigidity of conventional linear guides, enabling higher dynamic and static load ratings. This translates to superior vibration damping, reduced settling times, and improved machining or positioning accuracy. Low friction coefficients contribute to high-speed capability while reducing heat generation and energy consumption. The series maintains precise preload control across all sizes, eliminating play and ensuring repeatable motion under varying loads. With standardized dimensions compliant with global interchangeability requirements, the HSR Series simplifies machine design and maintenance while guaranteeing consistent performance worldwide. These guides demonstrate remarkable durability, achieving service lives significantly longer than competitive products through optimized heat treatment processes and specialized steel alloys. Typical applications span industries where reliability and precision are paramount. In industrial machinery, HSR Guides are deployed in CNC machining centers for tool changer systems, spindle supports, and feed axes, where their rigidity ensures dimensional accuracy in heavy cutting operations. Semiconductor manufacturing equipment utilizes these guides in wafer handling robots, lithography stages, and inspection systems, leveraging their smooth motion and particulate control. Automotive production lines incorporate HSR Guides in welding robots, assembly pallets, and test equipment, where high cycle rates and contamination resistance are critical. Precision equipment applications include medical device manufacturing systems, coordinate measuring machines, and optical positioning stages, where the guides' minimal friction and high accuracy enable micron-level positioning. The HSR-LC and XLC variants find particular utility in compact designs such as desktop automation, electronic component assembly, and laboratory automation, where space optimization is essential without compromising performance.
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HSR-HB-XHB SERIES
The THK LM Guide HSR, HB, and XHB Series represent the global standard in full-ball type linear motion systems, engineered for unparalleled precision, rigidity, and longevity in demanding industrial applications. These guides utilize a unique full-ball contact design where the load-bearing balls circulate through a meticulously engineered Gothic arch groove raceway, maximizing contact area to distribute loads evenly and minimize stress concentrations. This construction ensures exceptional moment stiffness, high positional accuracy, and smooth, near-frictionless motion essential for high-speed automation and precision machining. Key technical features include the incorporation of a highly efficient ball retainer within the HSR and HB models, which prevents ball-to-ball contact during recirculation. This significantly reduces heat generation, noise, and wear, even under extreme acceleration and rapid reciprocating movements. The XHB Series further enhances this with an expanded ball diameter and optimized recirculation system, delivering substantially higher load capacities—up to double that of standard HSR models—and superior rigidity for the most challenging applications. All series are available in a comprehensive range of global standard sizes, ensuring easy integration and interchangeability with existing machinery worldwide. Sealing is addressed with multi-lip, high-contact seals that effectively exclude contaminants like dust, chips, and moisture, while optional stainless steel versions provide excellent corrosion resistance for harsh environments, including cleanrooms and semiconductor manufacturing. The performance advantages are immediately evident in operational efficiency and reliability. The full-ball design provides high rigidity against moment loads (pitch, yaw, and roll), enabling precise positioning without deflection. This results in improved machining accuracy, superior surface finishes on workpieces, and the ability to maintain repeatability within microns over millions of cycles. The low-friction characteristics contribute to reduced power consumption for driving mechanisms and allow for higher achievable speeds, directly increasing throughput in automated systems. Typical applications for these robust LM Guides are found across a spectrum of high-precision industries. In industrial machinery, they are the backbone of CNC machining centers, grinding machines, and electric discharge machines (EDMs), where they guide tool posts and worktables with unwavering accuracy. Within automotive manufacturing systems, they are integral to robotic welding arms, precision assembly robots, and automated material handling equipment, enduring high dynamic loads and continuous operation. For precision equipment, the HSR and HB Series are indispensable in semiconductor wafer steppers, PCB drilling and inspection machines, and medical device assembly systems, where clean, vibration-free, and flawless motion is non-negotiable. By combining high load capacity, exceptional rigidity, and proven durability, the THK HSR, HB, and XHB Series provide the foundational motion control that drives modern manufacturing and automation forward.
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HSR-HA-XHA SERIES
THK's LM Guide HSR, HA, and XHA Series represent the global standard in full-ball type linear motion systems, engineered to deliver exceptional precision, rigidity, and longevity in demanding industrial applications. These guides utilize a unique full-ball contact design where the load-bearing balls circulate through a highly efficient, compact return system, ensuring smooth, uninterrupted motion with minimal friction. Available in a comprehensive range of sizes to meet international dimensional standards, the series offers versatile solutions for light to heavy-duty loads. The HSR series provides a robust general-purpose option, the HA series is optimized for high-rigidity applications, and the XHA series delivers extra-high rigidity for the most severe operating conditions, including those with significant moment loads. Key technical features define the superior performance of these components. The raceway geometry is precision-ground to provide an optimal contact angle for the balls, maximizing load capacity and rigidity in all directions—radial, reverse-radial, and lateral. A highly efficient, patented end cap design minimizes ball circulation resistance and ensures stable, quiet operation even at high speeds. For corrosion resistance in harsh environments, many models are available with stainless steel options for the rail, block, and balls. The seals are meticulously designed, incorporating multi-lip configurations to effectively exclude contaminants like dust, chips, and moisture while retaining lubrication, which is critical for maintaining performance and service life. Pre-load options allow for the elimination of internal clearance, resulting in zero backlash and enhanced positional accuracy, which is paramount for precision machining. The performance advantages of the HSR, HA, and XHA Series translate directly into increased productivity and reliability for end-users. The high rigidity and damping characteristics suppress vibration, enabling superior surface finish in machining operations and protecting sensitive equipment from shock loads. The low coefficient of friction and highly efficient recirculation system contribute to a consistently smooth motion, reducing required driving force and enabling higher speeds and accelerations without sacrificing precision. This combination of high load capacity, rigidity, and smooth motion ensures exceptional positioning accuracy and repeatability, which is maintained over an extended service life due to the robust construction and effective sealing. Typical applications for these LM Guides are found across a wide spectrum of high-performance industries. In industrial machinery, they are the backbone of CNC machining centers, providing the stable and precise movement for spindles in milling, drilling, and grinding operations. They are equally critical in industrial robots for accurate arm positioning and in automated assembly lines for high-speed pick-and-place units. Within the automotive manufacturing sector, these guides are integral to precision welding robots, high-speed transfer lines, and precision testing and inspection equipment. For advanced precision equipment, they are indispensable in semiconductor manufacturing apparatus, such as wafer steppers and wire bonders, where nanometer-level accuracy is non-negotiable, as well as in medical devices and precision measuring instruments where smooth, reliable, and backlash-free motion is essential.
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HSR-CB-XCB SERIES
THK's LM Guide HSR Series represents the global standard for full-ball type linear motion systems, delivering exceptional precision, rigidity, and longevity in demanding industrial applications. Engineered with a robust structure featuring a double-arc Gothic arch groove design, this series ensures optimal ball-to-raceway contact, distributing loads evenly across four points for smooth, highly accurate linear travel. The HSR, HSR-CB, and HSR-XCB variants offer flexibility in size and performance, with standard, compact, and extra-compact profiles to accommodate diverse spatial and load requirements. Each guide incorporates THK's advanced sealing technology, including multi-layer stainless steel seals and optional scrapers, effectively preventing contamination from dust, chips, and moisture while retaining lubrication for extended service life. Technical features of the HSR Series include high load capacity achieved through the full-ball recirculation system, which maximizes the number of load-bearing balls in contact with the raceways. This design significantly enhances rigidity, making the guides resistant to deformation under moment loads and vibration. Preload options allow for fine-tuning of stiffness and backlash control, catering to applications requiring ultra-precise positioning. The series is manufactured to stringent tolerances, ensuring interchangeability and ease of installation across global standards. Corrosion-resistant options, such as stainless steel components or specialized coatings, are available for harsh environments, while integrated lubrication units simplify maintenance routines. Performance advantages of the HSR Series translate directly into operational efficiency and reliability. The low-friction coefficient minimizes energy consumption and heat generation, enabling high-speed operation without sacrificing accuracy. Smooth motion characteristics reduce noise levels, contributing to a better working environment in sensitive settings like medical or laboratory equipment. With a long service life supported by durable materials and effective sealing, these guides reduce downtime and maintenance costs, making them a cost-effective solution for continuous or high-cycle operations. Their versatility allows for seamless integration into both new designs and retrofits, supported by THK's global availability and technical support. Typical applications span critical sectors where precision and durability are paramount. In industrial machinery, HSR Guides are integral to CNC machining centers, robotic arms, and automated assembly lines, providing stable guidance for cutting tools, slides, and positioning stages. The automotive industry leverages them in welding robots, precision testing equipment, and powertrain assembly systems, where high loads and repetitive motions demand unwavering reliability. For precision equipment, such as semiconductor manufacturing tools, optical inspection devices, or medical imaging systems, the HSR Series ensures sub-micron accuracy and vibration damping, essential for maintaining product quality and process consistency. By combining robust engineering with adaptable design, THK's LM Guide HSR Series empowers innovation across automation, manufacturing, and technology-driven fields.
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HSR-CA-XCA SERIES
THK's LM Guide HSR, HSR-CA, XCA, and SERIES represent the global standard in full-ball type linear motion systems, engineered for uncompromising precision, rigidity, and longevity in demanding industrial applications. These guides utilize a unique full-ball contact design between the rail and block, where the recirculating balls make four-point contact with the Gothic arch grooves. This configuration doubles the contact area compared to standard designs, significantly enhancing load capacity and rigidity while ensuring smooth, near-frictionless motion. Available in a comprehensive range of global standard sizes, these series provide a versatile foundation for constructing highly accurate linear motion stages and automation systems. Key technical features define their superior performance. The HSR series is the core model, offering a balanced profile for general high-load applications. The HSR-CA variant is a compact version, delivering similar load capacities and rigidity in a reduced height, ideal for space-constrained machinery. For the most severe demands, the XCA series features a reinforced contact structure for exceptional rigidity and moment load resistance. All models incorporate THK's advanced sealing technology, including metal and rubber seals, to effectively exclude contaminants like dust and chips while retaining lubrication. This results in a maintenance-free operational life even in harsh environments. The precision-ground rails and blocks guarantee high running parallelism and positional accuracy, which is critical for processes requiring micron-level repeatability. The performance advantages are substantial. The four-point contact design provides high rigidity against moment and complex loads, minimizing deflection and vibration during operation. This stability translates directly into improved machining quality, surface finishes, and dimensional accuracy of manufactured parts. The high load capacity, encompassing radial, reverse radial, and lateral directions, allows for the design of more compact systems that can handle heavier tools, workpieces, or forces without sacrificing performance or service life. Furthermore, the optimized recirculation system and high-quality steel construction contribute to low noise, low vibration, and high-speed capability, enabling faster cycle times and increased throughput. Typical applications for these robust linear guides span across critical sectors. In industrial machinery, they are indispensable in CNC machining centers for guiding spindle heads and tool changers, in grinding machines for precise table movement, and in injection molding machines for ejector and moving platen systems. Within the automotive industry, they are deployed in automated assembly lines for robotic arms and transfer systems, and in high-precision testing equipment for quality control. For precision equipment, these components are found in semiconductor manufacturing apparatus, including steppers and wire bonders, and in medical devices and optical inspection machines where smooth, accurate, and reliable motion is non-negotiable. By providing a blend of high load capacity, exceptional rigidity, and proven durability, the THK HSR series and its variants form the bedrock of modern, high-performance automation and precision engineering.
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HSR-C-XC SERIES
THK's HSR Series LM Guides represent the global standard for full-ball type linear motion systems, delivering exceptional precision, rigidity, and longevity in demanding industrial applications. These guides utilize a unique full-ball contact design where the load-bearing balls circulate through a highly efficient, compact return system, ensuring smooth, uninterrupted motion with minimal resistance. Available in standard global sizes, the HSR, HSR-C, and XC sub-series offer versatile solutions tailored to varying load capacities, space constraints, and precision requirements. Constructed from high-carbon chromium bearing steel, the rails and blocks undergo rigorous heat treatment and precision grinding to achieve superior surface hardness, dimensional accuracy, and corrosion resistance, even in harsh operating environments. Key technical features include the incorporation of THK's patented C-Land geometry on the rail raceways, which optimizes ball contact and distribution to significantly enhance load capacity and moment rigidity. The compact block design integrates high-performance seals and wipers that effectively exclude contaminants like dust, chips, and moisture while retaining lubrication, drastically extending service intervals and component life. For applications requiring even greater contamination resistance, the HSR-C and XC variants feature enhanced sealing systems and, in some models, grease fittings for simplified maintenance. The precision-ground raceways and meticulously sized balls minimize travel resistance and provide consistent, low-friction motion, contributing to improved positional accuracy and repeatability. Performance advantages of the HSR Series are substantial, offering high static and dynamic load ratings that enable the support of heavy loads and significant moment forces in multiple directions. This results in exceptional stability and vibration damping, critical for maintaining precision under high-speed operation and sudden directional changes. The low coefficient of friction and high efficiency translate to reduced drive power requirements, enabling energy savings and permitting the use of smaller, more cost-effective motors and drives. Their long service life and reliability reduce machine downtime and total cost of ownership, making them an economically sound investment. Typical applications are widespread across industries requiring reliable linear motion. In industrial machinery, HSR Guides are integral to CNC machining centers, providing precise table movement for milling, drilling, and boring operations; they are also fundamental in automated assembly lines, robotic arms, and precision measuring instruments. Within the automotive sector, these components are employed in welding robots, precision test equipment, and automated material handling systems that demand high speed and durability. For precision equipment, the HSR Series is found in semiconductor manufacturing apparatus, optical positioning stages, and medical diagnostic devices where smooth, accurate, and contamination-free motion is paramount to operational success and product quality.
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HSR-XSR SERIES
THK's LM Guide HSR, HSR, XSR, and SERIES represent the global standard in full ball-type linear motion systems, engineered to deliver exceptional precision, rigidity, and longevity in demanding industrial applications. These guides incorporate a unique full ball contact design between the rail and block, ensuring uniform load distribution and minimal elastic deformation under stress. The HSR series, available in multiple sizes such as 15, 20, 25, 30, 35, 45, 55, and 65, offers high load capacity and moment resistance, making it ideal for heavy-duty machinery. The compact XSR series provides similar performance in a reduced footprint, while the SERIES variants cater to specialized needs with enhanced corrosion resistance or pre-loaded options for zero backlash. Key technical features include THK's patented Caged Ball technology, which retains balls in a precision-engineered cage to prevent slippage and reduce noise, even at high speeds. The four-way equal load design allows the guide to handle radial, reverse radial, and lateral loads simultaneously, maintaining stability during complex motion sequences. Sealing systems, such as multi-lip seals and metal scrapers, protect the ball recirculation paths from contaminants like dust, chips, and moisture, extending service life in harsh environments. Pre-load adjustments enable users to eliminate play and optimize stiffness, critical for applications requiring micron-level accuracy. Performance advantages of these LM Guides are evident in their ability to achieve smooth, low-friction motion with minimal maintenance. The full ball configuration reduces heat generation and wear, contributing to a longer operational lifespan and consistent precision over time. High-speed capabilities, often exceeding 5 m/s, are supported by optimized recirculation systems that prevent ball skidding. Rigidity is enhanced through large contact angles and reinforced block structures, allowing the guides to withstand heavy cutting forces or sudden shocks without deflection. Typical applications span across industrial machinery, where HSR guides are deployed in CNC machining centers for precise tool positioning, automated assembly lines for robotic arms, and semiconductor manufacturing equipment requiring sub-micron repeatability. In automotive systems, they facilitate accurate movement in welding robots, engine component testing rigs, and brake assembly lines. Precision equipment, such as coordinate measuring machines (CMMs), optical alignment devices, and medical imaging systems, relies on the SERIES and XSR variants for vibration damping and flawless linear traversal. By combining robustness with refined motion control, THK's LM Guide series enables advancements in automation, quality assurance, and technological innovation across global industries.
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HSR-XSC SERIES
The THK LM Guide HSR/XSC Series represents the global standard for full-ball type linear motion systems, combining decades of engineering refinement with robust performance characteristics essential for high-precision industrial applications. These guides feature a unique full-ball contact design where recirculating balls make four-point contact with the raceways, distributing load evenly across all rolling elements. This configuration provides higher rigidity and load capacity compared to standard designs, while maintaining smooth, low-friction motion. Available in multiple accuracy grades (Normal, High, and Super High) and preload levels, the series offers design flexibility for varying application demands. Technical features include the incorporation of THK's patented Caged Ball technology in select models, which separates individual balls with a resin retainer to prevent metal-to-metal contact. This eliminates ball-to-ball friction, reduces heat generation, and maintains consistent lubrication distribution. The HSR/XSC Series incorporates advanced sealing systems with multi-layer contact seals and metal scrapers that effectively exclude contaminants while retaining grease, significantly extending maintenance intervals. Manufactured from case-hardened steel with precision grinding, these components deliver exceptional dimensional stability and wear resistance. Standard models operate effectively across temperatures from -15°C to 80°C, with high-temperature options available for more demanding environments. Performance advantages manifest in several critical areas. The full-ball design enables higher load ratings – up to double that of conventional linear guides in comparable sizes – while maintaining compact dimensions. Static safety factors exceed industry standards, with permissible loads reaching 1.5 to 2 times the basic dynamic load rating depending on configuration. The optimized recirculation system ensures consistent motion characteristics at speeds up to 5 m/s with minimal vibration, while the precision ground raceways provide running parallelism within microns. These guides achieve positioning accuracy with repeatability to ±1μm under proper mounting conditions, making them suitable for applications requiring micron-level precision. Typical applications span multiple industries where reliability and precision are paramount. In industrial machinery, HSR/XSC Guides serve as critical components in CNC machining centers, providing stable motion for tool positioning systems and spindle supports. The automotive industry employs these guides in welding robot seventh-axis systems, where they withstand continuous operation in challenging environments while maintaining positional accuracy. Precision equipment applications include semiconductor manufacturing apparatus, where the guides facilitate exact wafer positioning in photolithography and inspection systems. Medical device manufacturers utilize the series in DNA sequencing equipment and automated diagnostic instruments, where smooth, vibration-free motion is essential for analytical accuracy. The HSR/XSC Series' combination of high load capacity, precision, and reliability makes it the preferred solution for engineers designing advanced automation systems across these demanding sectors.
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HSR-LB SERIES
THK's HSR LB SERIES LM Guide represents the global standard in full-ball type linear motion technology, engineered for applications demanding high rigidity, precision, and longevity under rigorous conditions. This series incorporates a robust design with a ball-circulating system that maximizes load capacity and moment resistance while ensuring smooth, low-friction travel. The HSR LB features a compact, low-profile structure, making it ideal for space-constrained installations without compromising performance. Its standardized dimensions ensure interchangeability and ease of integration across diverse industrial platforms worldwide. Key technical features include a full-ball contact design between the rail and block, which distributes loads evenly across all rolling elements, significantly enhancing stiffness and reducing deformation under stress. The HSR LB SERIES is manufactured with precision-ground raceways and high-carbon chromium bearing steel, providing exceptional hardness and wear resistance. It includes advanced sealing systems—such as metal scrapers and rubber seals—to prevent contamination from dust, chips, and moisture, extending service life in harsh environments. Pre-loaded options are available to eliminate backlash, ensuring repeatable accuracy for precision positioning tasks. Performance advantages of the HSR LB SERIES are evident in its ability to handle high loads—both dynamic and static—with minimal maintenance requirements. The full-ball configuration reduces friction coefficients, resulting in smoother motion, lower heat generation, and energy efficiency. Its optimized ball circulation minimizes noise and vibration, contributing to quieter operation in sensitive settings. With high-speed capability and excellent durability, this LM Guide maintains precision over long travel distances, even under frequent start-stop cycles or varying directional loads. Typical applications span critical sectors where reliability and precision are non-negotiable. In industrial machinery, the HSR LB SERIES is deployed in CNC machining centers for axis guidance, robotic arms for precise part handling, and automated assembly lines for linear positioning. Automotive systems leverage these guides in welding robots, engine component testing equipment, and brake assembly machines, where high rigidity and contamination resistance are vital. Precision equipment, such as semiconductor manufacturing tools, optical measuring instruments, and medical imaging devices, relies on the HSR LB for sub-micron accuracy and stability. By combining global standardization with superior engineering, THK's HSR LB SERIES LM Guide delivers a dependable solution for advancing automation and precision across industries.
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HSR-LA SERIES
THK's LM Guide HSR LA SERIES represents a pinnacle of linear motion engineering, designed as a full ball type global standard size model to deliver exceptional precision, rigidity, and longevity in demanding applications. This series incorporates a robust structure with a precision-ground track rail and a compact block featuring a full ball recirculation system. The balls make contact at a 45-degree contact angle, optimized to handle complex loads—including radial, reverse radial, and lateral forces—with high rigidity and minimal deformation. Each component is manufactured to exacting tolerances, ensuring smooth, near-frictionless motion and reliable performance across diverse industrial environments. Key technical features distinguish the HSR LA SERIES for superior functionality. It employs a high-capacity, four-row circular arc groove design that maximizes ball contact area, distributing loads evenly to enhance load capacity and stiffness. The integrated end seal and side seal system effectively prevents contamination from dust, chips, and moisture, while the optional grease nipple facilitates easy relubrication, extending maintenance intervals. With global standard dimensions, this series ensures interchangeability and easy integration into existing machinery, reducing downtime and simplifying procurement. Its compact profile allows for space-saving designs without compromising on performance, making it ideal for applications where precision and reliability are non-negotiable. Performance advantages of the HSR LA SERIES translate directly into operational benefits. The full ball recirculation mechanism minimizes rolling resistance, enabling high-speed operation with exceptional accuracy and repeatability. This results in reduced energy consumption, lower heat generation, and quieter performance, even under heavy loads or rapid cycling conditions. The guide's high rigidity dampens vibrations, contributing to improved surface finishes in machining applications and extended tool life. Additionally, its corrosion-resistant options and durable construction ensure consistent operation in harsh environments, from automated factories to cleanrooms, reducing the total cost of ownership through decreased wear and minimal maintenance needs. Typical applications span critical sectors where precision linear motion is essential. In industrial machinery, the HSR LA SERIES is widely used in CNC machining centers, grinding machines, and milling equipment to achieve precise positioning and smooth table movement. Within automotive systems, it facilitates accurate assembly processes, robotic welding, and transfer lines, enhancing production efficiency and part quality. For precision equipment, this guide is integral to semiconductor manufacturing devices, optical positioning stages, and medical imaging systems, where sub-micron accuracy and reliability are paramount. Its versatility and robustness also make it suitable for packaging machinery, printing presses, and automated inspection systems, underscoring its role as a foundational component in advancing automation and technological innovation across industries.
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HSR-HR SERIES
THK's LM Guide HSR, HR, and SERIES represent the global standard in full ball-type linear motion systems, engineered to deliver exceptional precision, rigidity, and longevity in demanding industrial applications. These guides incorporate a robust structure with a track rail and block featuring Gothic arch grooves that provide four-point contact with the recirculating balls. This design ensures high load capacity in all directions—radial, reverse-radial, and lateral—while maintaining smooth, low-friction motion. The HSR Series, known for its high rigidity and accuracy, is available in sizes from miniature to large, accommodating loads from light-duty precision tasks to heavy machinery. The HR Series offers a compact, lightweight alternative with similar performance characteristics, ideal where space constraints are critical. The SERIES variants maintain these core principles with design optimizations for specific operational environments, ensuring consistent performance across diverse applications. Key technical features include THK's patented C-Lube reservoir system in some models, which extends lubrication intervals and reduces maintenance downtime. The incorporation of high-grade stainless steel or aluminum alloys, combined with precision grinding and hardening processes, guarantees dimensional stability and resistance to wear and corrosion. Sealing systems, such as multi-layer elastomer seals and metal scrapers, effectively exclude contaminants like dust, chips, and moisture, making these guides suitable for harsh environments. Pre-load adjustments eliminate internal clearance, enhancing positional accuracy and repeatability, while optimized ball circulation paths minimize noise and vibration during high-speed operation. Performance advantages are evident in their ability to sustain high speeds and accelerations with minimal friction, contributing to energy efficiency and reduced heat generation. The full ball-type design distributes loads evenly across multiple contact points, significantly increasing service life and allowing for higher permissible loads compared to alternative linear motion systems. This results in improved machine throughput, reduced deflection under load, and enhanced overall system stability. Applications span across industrial machinery, including CNC machining centers, where precise tool positioning is critical; automotive assembly lines for robotics and transfer systems requiring durability and speed; and precision equipment such as semiconductor manufacturing tools, medical devices, and optical instruments that demand ultra-smooth motion and contamination control. In automotive testing rigs, these guides provide reliable linear motion for simulation and measurement apparatus, while in packaging machinery, they ensure rapid, accurate product handling. By integrating THK's LM Guide HSR, HR, and SERIES, engineers achieve optimized performance, reduced total cost of ownership, and heightened reliability in automated systems worldwide.
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HSR-B SERIES
THK's LM Guide HSR B SERIES represents the global standard in full-ball type linear motion systems, engineered for unparalleled precision and durability in demanding industrial applications. This series features a robust structure with four load-bearing raceway tracks, ensuring high rigidity and stability under complex load conditions including moment loads. The HSR B design incorporates a patented ball retainer that prevents ball-to-ball contact, reducing friction and heat generation while maintaining smooth motion at high speeds. With standardized dimensions compliant with international specifications, these guides offer seamless interchangeability and simplified integration into existing machinery layouts across global markets. Technical features include optimized recirculation systems that provide consistent lubrication distribution, extending service intervals and component lifespan even in contaminated environments. The steel-on-steel construction with precision-ground raceways delivers accuracies meeting JIS B 1192-1997 standards, while optional seals and scrapers protect against particulate ingress in harsh operating conditions. Load capacities range from basic dynamic ratings of 7.8 kN to 72.6 kN depending on size selection, with stiffness values reaching 340 N/μm in larger models. The series maintains performance across temperatures from -20°C to 100°C without degradation. Performance advantages manifest in several critical areas: the full-ball configuration maximizes contact area between balls and raceways, distributing loads evenly for higher stiffness and longer service life compared to partial-contact designs. This construction enables sustained precision during high-speed operation up to 3 m/s while maintaining positioning accuracy within microns. The reduced friction characteristics yield efficiency improvements through lower drive power requirements, with noise levels minimized to below 65 dB in typical installations. Maintenance needs are significantly reduced through the anti-creep ball retainer design and effective sealing options. Typical applications span industrial automation where HSR B guides provide precise positioning in CNC machine tool slides, semiconductor manufacturing equipment, and robotic assembly systems. In automotive production lines, they facilitate accurate movement in welding robots, transfer lines, and component testing machinery. Precision equipment implementations include coordinate measuring machines, optical positioning stages, and medical device manufacturing systems requiring micron-level repeatability. The series' reliability makes it suitable for 24/7 operation in packaging machinery, electronic component insertion equipment, and automated warehouse retrieval systems where minimal maintenance downtime is critical.
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HSR-A SERIES
The THK LM Guide HSR A SERIES represents a globally standardized linear motion solution engineered for high precision, rigidity, and durability in demanding industrial environments. As a full ball type LM Guide, it features a robust structure where load-bearing balls make complete contact with the raceways, optimizing stress distribution and load capacity. This design ensures exceptional performance across diverse applications, from heavy-duty machinery to high-speed automation systems. Key technical features define the HSR A SERIES’s reliability. The guide incorporates a full-ball, four-row circular arc groove design that provides high rigidity and smooth motion by evenly distributing loads. Its compact cross-section minimizes space requirements while maintaining high load ratings. The series includes integrated seals and scrapers to prevent contamination from dust, chips, and moisture, significantly extending service life in harsh conditions. Additionally, options for lubrication units ensure consistent performance with minimal maintenance. Standardized dimensions across the global model range facilitate easy integration and interchangeability, reducing downtime and inventory complexity. Performance advantages are evident in its operational characteristics. The HSR A SERIES delivers high positional accuracy and repeatability, critical for precision tasks. Its high rigidity minimizes deflection under load, maintaining stability during high-speed or heavy-cutting operations. Low friction coefficients contribute to smooth, quiet motion, reducing energy consumption and wear. With dynamic load ratings up to 49.5 kN and static load capacities reaching 92.1 kN (depending on size), it handles substantial forces without compromising precision. The design also dampens vibration and noise, enhancing both equipment longevity and workplace safety. Typical applications span multiple industries where reliability and precision are paramount. In industrial machinery, the HSR A SERIES is integral to CNC machining centers, grinding machines, and milling equipment, providing stable guidance for spindles and tables under heavy loads. Automotive manufacturing leverages these guides in robotic welding arms, assembly line transporters, and precision testing instruments, where high-speed accuracy and durability are essential. Within precision equipment, they are found in semiconductor fabrication tools, medical imaging devices, and optical positioning systems, ensuring micron-level accuracy in sensitive environments. By combining standardized sizing with advanced engineering, the THK LM Guide HSR A SERIES offers a versatile, high-performance solution for linear motion challenges. Its full-ball contact design, contamination resistance, and robust construction make it a preferred choice for engineers seeking to enhance machine performance, reduce maintenance intervals, and achieve long-term operational reliability across global industrial applications.
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