THK's LM Guide Actuator SKR65 series represents a sophisticated integration of linear motion technology designed for high-load, high-precision applications. This actuator combines the renowned reliability of THK's LM Guide with a built-in motor, creating a compact, self-contained linear motion system. The defining feature of the SKR65 is its Caged Ball technology, a significant advancement over traditional linear guide designs. In this system, the precision balls are securely contained within a resin cage. This cage prevents ball-to-ball contact, drastically reducing friction, heat generation, and wear. This design ensures consistent, smooth motion with minimal variation in dynamic friction, even at high speeds or under varying loads. The elimination of metal-to-metal contact between the balls also suppresses vibration and noise, contributing to quieter operation and enhanced positioning accuracy. The performance advantages of the SKR65 Caged Ball LM Guide Actuator are substantial. The caged ball construction allows for higher maximum speeds and accelerations compared to standard designs, as it mitigates the risk of ball skidding and associated damage. The reduced friction directly translates to lower torque requirements for the integrated motor, improving overall energy efficiency. Furthermore, the consistent frictional characteristics ensure predictable and repeatable motion, which is paramount for precision automation. The unit is pre-assembled and lubricated for life, minimizing maintenance needs and simplifying installation. The robust construction of the SKR65, with its large ball diameter and high rigidity, provides exceptional load capacity in all directions—radial, reverse-radial, and lateral—making it capable of withstanding heavy loads and moment forces without compromising performance. Typical applications for this actuator are found in demanding sectors where precision, reliability, and high throughput are non-negotiable. In industrial automation, it is ideally suited for high-speed pick-and-place robots, precision assembly machines, and automated test and inspection equipment. The ability to handle high moment loads makes it perfect for applications with long overhangs or complex multi-axis configurations. Within the automotive industry, the SKR65 is deployed in high-speed welding and gluing robots on assembly lines, precision parts transfer systems, and advanced laser processing machines for component manufacturing. In the realm of precision equipment, it serves as the core drive mechanism in semiconductor manufacturing apparatus, such as wafer steppers and wire bonders, where nanometer-level accuracy and vibration-free operation are critical. The motor-wrap design, where the motor is seamlessly integrated, saves valuable space and streamlines the entire drive system, making the SKR65 a comprehensive solution for modern, high-performance machinery.

The THK LM Guide Actuator Caged Ball LM Guide Actuator SKR65 represents a sophisticated integration of linear motion technology, combining a precision LM guide with a high-efficiency ball screw actuator in a single, compact unit. This design eliminates the need for separate mounting of guide and drive components, streamlining machine design, reducing assembly time, and enhancing overall structural rigidity. The defining feature of this actuator is its use of a caged ball technology within the LM guide block. Instead of balls recirculating in direct contact with each other, they are individually contained within a precision polymer cage. This fundamental design innovation drastically reduces friction and heat generation, virtually eliminating metal-on-metal contact between the balls. The result is a remarkably smooth, quiet, and consistent motion with exceptionally low and stable running torque, even at high speeds. Key technical features of the SKR65 include its robust construction, with a shaft diameter of 65mm, making it suitable for applications demanding high load capacity and moment resistance. The integrated ball screw provides high positioning accuracy and repeatability, while the caged ball LM guide ensures long-term precision by preventing ball-to-ball wear and the associated degradation of smoothness. The seal design is optimized to effectively exclude contaminants like dust and chips, a critical factor for maintaining performance in harsh industrial environments. The unit is pre-lubricated for long service life and requires minimal maintenance. The performance advantages are substantial. The reduction in friction directly translates to lower energy consumption and less heat buildup, which is crucial for precision equipment where thermal expansion can cause dimensional inaccuracies. The stability of the running torque ensures consistent performance throughout the actuator's stroke, leading to improved machining or assembly quality. The inherent quiet operation enhances the working environment and is beneficial for automated systems in noise-sensitive areas. Furthermore, the extended service life and reduced maintenance requirements significantly lower the total cost of ownership. Typical applications for the THK SKR65 actuator are found in demanding sectors where precision, reliability, and high dynamic performance are non-negotiable. In industrial machinery, it is ideally suited for high-speed machining centers, automated assembly robots, precision grinding machines, and high-speed pick-and-place systems. Within the automotive industry, it is deployed in high-precision welding equipment, advanced robotic painting arms, and automated inspection stations on production lines. In the realm of precision equipment, the SKR65 is a critical component in semiconductor manufacturing apparatus, such as wafer steppers and die bonders, as well as in precision measuring instruments and medical automation devices where smooth, vibration-free motion is essential for accuracy. Its robust design and high load capacity also make it suitable for material handling systems and other applications requiring precise linear positioning under significant loads.

The THK LM Guide Actuator SKR55 represents a sophisticated integration of linear motion technology, combining a precision LM Guide with a high-performance ball screw actuator in a compact, motor-ready package. This system features the innovative Caged Ball technology, where precision balls are individually contained within a polymer cage, eliminating ball-to-ball contact and significantly reducing noise, vibration, and heat generation during operation. The SKR55 model is engineered with a nominal width of 55mm, providing a robust platform capable of handling substantial loads and moments while maintaining exceptional accuracy. Key technical features define its superior performance. The Caged Ball LM Guide mechanism ensures smooth, consistent motion with minimal friction, leading to a longer operational life and reduced maintenance requirements. The integrated ball screw actuator offers high positioning accuracy and repeatability, with pre-loaded nuts to eliminate backlash and enhance rigidity. The actuator is designed for direct motor attachment, simplifying the drive system integration. Constructed from high-grade steel with precision grinding and heat treatment, the components deliver high stiffness and durability. Sealing systems are incorporated to protect the rolling elements from contaminants like dust and chips, ensuring reliable performance even in harsh industrial environments. The performance advantages of the SKR55 are substantial for demanding automation tasks. The caged ball design drastically lowers friction torque and allows for higher maximum speeds compared to conventional retainer-type designs, which translates into faster cycle times and improved throughput. Its high rigidity and load capacity enable it to withstand heavy cutting forces or significant external loads without deflection, ensuring machining precision and process stability. The low-noise, low-vibration characteristics are critical for applications requiring quiet operation or minimal impact on sensitive peripheral equipment. Furthermore, the simplified lubrication requirements and extended maintenance intervals reduce total cost of ownership over the machine's lifecycle. Typical applications for the THK SKR55 actuator are found across industries where precision, reliability, and high dynamic performance are non-negotiable. In industrial machinery, it is extensively used in CNC machining centers for tool changing mechanisms, high-speed milling and drilling heads, and precision grinding machines. Within automotive manufacturing systems, these actuators drive robotic welding and assembly arms, provide precise positioning in engine component machining lines, and operate automated material handling and transfer systems. In the realm of precision equipment, the SKR55 is ideal for semiconductor manufacturing apparatus, including wafer handling robots and stepper stages, as well as in precision inspection and measurement devices where smooth, jitter-free motion is essential for data accuracy. Its robust design and high-speed capabilities make it a cornerstone component for advancing automation and productivity.

The THK LM Guide Actuator SKR55 represents a significant advancement in linear motion technology, integrating a caged ball LM guide mechanism within a robust actuator assembly. This design features precision-ground rails and a carriage equipped with a unique ball retainer system that encapsulates the rolling elements, preventing metal-to-metal contact and ensuring smooth, consistent motion. The SKR55 model is engineered with a compact cross-section, high load capacity, and exceptional rigidity, making it suitable for demanding applications where space constraints and performance reliability are critical. Key technical features of the SKR55 include its caged ball design, which minimizes friction and heat generation by maintaining optimal spacing between balls, reducing wear and extending service life. The actuator incorporates preloaded ball screws for high positional accuracy and repeatability, with tolerances within microns. It is constructed from high-grade steel and treated with surface hardening processes to enhance durability and corrosion resistance. The integrated sealing system effectively excludes contaminants such as dust, chips, and moisture, ensuring reliable operation in harsh environments. Additionally, the SKR55 offers customizable options for stroke length, mounting configurations, and lubrication interfaces to adapt to specific system requirements. Performance advantages of this actuator are evident in its ability to deliver high-speed linear motion with minimal vibration and noise, thanks to the stabilized ball circulation. The caged ball mechanism eliminates ball-to-ball contact, reducing torque variation and enabling smoother acceleration and deceleration profiles. This results in improved dynamic response, higher efficiency, and reduced energy consumption compared to conventional designs. The SKR55 maintains precision under heavy loads, with a high moment load capacity that resists deflection and ensures stability during operation. Its low maintenance needs, facilitated by long-term lubrication intervals and easy inspection points, contribute to lower total cost of ownership and reduced downtime. Typical applications for the THK LM Guide Actuator SKR55 span across industrial machinery, automotive systems, and precision equipment. In industrial automation, it is deployed in CNC machining centers for tool positioning, robotic arm articulation, and high-speed pick-and-place systems where accuracy and speed are paramount. Within the automotive sector, the actuator supports assembly line robots, welding equipment, and precision testing instruments that require reliable linear motion under continuous use. For precision equipment, it finds use in semiconductor manufacturing apparatus, optical alignment systems, and medical device actuators, where micron-level precision and contamination control are essential. The SKR55’s versatility and robustness make it a preferred choice for engineers seeking to enhance performance in applications demanding high load capacity, longevity, and precise linear control.

THK's LM Guide Actuator SKR46 series represents a sophisticated integration of linear motion technology and precision engineering, specifically designed for applications demanding high rigidity, exceptional accuracy, and reliable performance. This actuator combines the renowned benefits of THK's LM Guide mechanism with a built-in motor, creating a compact, self-contained unit ideal for automated systems. The "Caged Ball" technology is a standout feature, where precision balls are securely held within a polymer retainer. This design prevents ball-to-ball contact, drastically reducing friction, heat generation, and wear, even at high speeds. The result is a smoother, quieter operation with a significantly longer service life compared to conventional designs. The balls are recirculated efficiently within the compact cross-section of the guide, ensuring consistent load distribution and minimal maintenance requirements. The technical features of the SKR46 are engineered for superior performance. Its high rigidity is achieved through a large contact angle and optimized ball groove geometry, enabling it to withstand substantial moment loads and overturning forces. The integrated motor, often a servo or stepper type, is seamlessly wrapped into the actuator's structure, eliminating the need for external coupling mechanisms and saving valuable installation space. This direct drive configuration enhances positional accuracy and response time. Pre-loading is applied to eliminate internal clearance, providing high positional accuracy and repeatability, which is critical for precision tasks. The unit is also designed for excellent dust and debris resistance, often featuring seals and wipers to protect the ball recirculation system in harsh environments. The performance advantages translate directly into operational benefits across various industries. In industrial machinery, the SKR46 actuator is pivotal in high-speed pick-and-place systems, precision assembly robots, and automated material handling equipment, where its speed, accuracy, and durability maximize throughput and minimize downtime. Within automotive manufacturing systems, it is employed in precision welding apparatus, parts transfer systems, and automated inspection stations, where its ability to handle high moment loads and maintain precision under continuous operation is essential. For precision equipment, such as semiconductor manufacturing machinery, medical diagnostic devices, and optical positioning systems, the actuator's low friction, minimal vibration, and sub-micron level accuracy ensure the highest quality of output. The compact, all-in-one design of the motor-wrapped SKR46 simplifies machine design, reduces the total number of components, and facilitates easier installation and maintenance, making it a versatile and high-value solution for advancing automation and precision in modern industrial applications.

The THK LM Guide Actuator Caged Ball LM Guide Actuator SKR46 represents a significant advancement in linear motion technology, integrating a precision ball screw with a robust LM guide mechanism to deliver exceptional accuracy, rigidity, and load capacity in a compact, unified assembly. This actuator is engineered with a unique caged ball design within the LM guide block, where precision-engineered balls are individually retained in a polymer cage. This configuration drastically reduces friction and heat generation by minimizing ball-to-ball contact, allowing for higher operating speeds, reduced torque requirements, and significantly quieter, smoother motion compared to conventional recirculating ball designs. The elimination of ball-to-ball contact also prevents skidding and reduces wear, contributing to extended service life and consistent performance even under high-load, high-speed conditions. Key technical features include the high-rigidity LM guide with four rows of load-carrying balls arranged in a Gothic arch groove profile, providing equal load capacity in all directions—radial, reverse-radial, and lateral. This ensures stable, precise linear guidance without deflection under moment loads. The integrated precision ball screw offers high positioning accuracy with lead errors as low as several microns per 300mm travel, backed by preloading to eliminate backlash and enhance repeatability. The actuator is available with various ball screw lead options to optimize for speed or resolution, and it can be supplied with pre-assembled support units and motor mounts for simplified installation. Sealing systems with multiple wipers and grease retainers protect the rolling elements from contaminants like dust, chips, and moisture, making it suitable for harsh environments. Performance advantages are substantial, starting with the ability to achieve speeds up to 5 m/s and accelerations exceeding 30 m/s², thanks to the reduced friction and heat of the caged ball system. This design also allows for smoother velocity transitions and more precise stop-and-go operations, critical in high-cycle automation. The high rigidity and load capacity—supporting moments up to 3,800 Nm and dynamic loads exceeding 60 kN—enable the actuator to handle heavy payloads without sacrificing accuracy. Maintenance intervals are extended due to lower wear rates, and the inherent smoothness reduces vibration transmission to sensitive components. Typical applications leverage these strengths across demanding sectors. In industrial machinery, the SKR46 is ideal for high-speed CNC machining centers performing rapid tool changes, precision grinding and milling slides, and automated assembly robots requiring fast, accurate positioning. Within automotive manufacturing systems, it excels in high-duty-cycle welding and gluing robots, precision press-feeding equipment, and engine component transfer lines where reliability under continuous operation is paramount. For precision equipment, this actuator is deployed in semiconductor wafer handling and inspection stages, medical device assembly automation, and optical alignment systems where sub-millimeter accuracy, minimal vibration, and quiet operation are essential for product quality and process integrity.

The THK LM Guide Actuator Caged Ball LM Guide Actuator SKR33 Motor wrap represents a sophisticated integration of linear motion technology designed for high-precision, high-load applications in demanding industrial environments. This system combines THK’s renowned LM Guide technology with an actuator mechanism that features a caged ball design, ensuring smooth, reliable motion with minimal friction and wear. The SKR33 model is specifically engineered to accommodate motor integration, providing a compact, all-in-one solution for automated systems requiring precise linear positioning. Key technical features of the SKR33 actuator include its caged ball retainer mechanism, which separates the rolling balls to prevent contact and reduce friction, thereby minimizing heat generation and extending service life. The LM Guide component offers high rigidity and accuracy, with four-way equal load capacity that allows it to handle moment loads from all directions effectively. The actuator is pre-loaded to eliminate backlash, ensuring repeatable positioning accuracy even under varying operational conditions. Its compact design integrates a ball screw and guide mechanism into a single unit, simplifying installation and saving space in machinery layouts. The motor wrap feature facilitates direct coupling with servo or stepper motors, enabling seamless control and high-speed operation. Performance advantages are substantial, starting with enhanced durability due to the caged ball design, which reduces wear on the balls and raceways, leading to a longer lifespan and reduced maintenance requirements. The system delivers high positional accuracy, typically within microns, making it ideal for applications where precision is critical. Its ability to handle high loads and moments without sacrificing speed or stability allows for improved productivity in automated processes. The low noise and vibration characteristics contribute to a smoother operation, which is beneficial in environments requiring minimal disturbance. Additionally, the integrated design reduces the need for additional components, lowering overall system costs and simplifying maintenance. Typical applications span across various industries, leveraging the SKR33’s robustness and precision. In industrial machinery, it is commonly used in CNC machining centers, pick-and-place robots, and automated assembly lines where high-speed, accurate linear motion is essential. Within automotive systems, this actuator finds use in welding robots, precision testing equipment, and parts handling mechanisms that demand reliability under heavy loads and continuous operation. In precision equipment, it supports applications such as semiconductor manufacturing devices, medical imaging systems, and optical alignment tools, where micron-level accuracy and stability are non-negotiable. The SKR33’s versatility also extends to packaging machinery, printing presses, and other automated systems requiring dependable linear guidance and actuation.

The THK LM Guide Actuator Caged Ball LM Guide Actuator SKR33 represents a significant advancement in linear motion technology, integrating a caged ball design within a compact, highly efficient actuator system. This configuration features precision-ground raceways and specially engineered ball cages that securely retain the rolling elements, preventing contact and minimizing friction during operation. The SKR33 model is constructed with high-grade steel and advanced polymers, ensuring exceptional durability and resistance to wear under demanding conditions. Its compact profile allows for easy integration into space-constrained applications without sacrificing performance or load capacity. Key technical features of the SKR33 include its caged ball mechanism, which eliminates ball-to-ball contact, drastically reducing heat generation and noise levels while maintaining smooth, consistent motion. The actuator incorporates a precision ball screw with optimized lead accuracy, delivering high positioning repeatability within microns. It is pre-loaded to minimize backlash and equipped with seals that protect against contaminants like dust, chips, and moisture, extending service life in harsh environments. The unit supports high dynamic loads and offers excellent rigidity, making it suitable for applications requiring high-speed movement and precise control. Performance advantages are evident in its operational efficiency and reliability. The caged ball design enhances lubrication retention, reducing maintenance frequency and ensuring long-term performance stability. With low friction coefficients, the SKR33 achieves higher speeds and accelerations while consuming less power, contributing to energy savings in automated systems. Its robust construction allows it to withstand shock loads and vibrations, maintaining accuracy in repetitive tasks. The actuator’s smooth motion profile reduces wear on associated components, lowering total cost of ownership over its lifecycle. Typical applications span across industrial machinery, automotive systems, and precision equipment. In industrial automation, the SKR33 is deployed in CNC machining centers for tool changers, palletizers, and material handling robots, where precision and speed are critical. Automotive manufacturers utilize it in assembly lines for welding guns, part positioning systems, and testing equipment, benefiting from its durability and contamination resistance. In precision instruments, it finds use in semiconductor manufacturing for wafer handling, optical alignment stages, and medical device automation, where micron-level accuracy and minimal vibration are paramount. The SKR33’s versatility and reliability make it an ideal solution for enhancing productivity and precision in diverse, high-demand environments.

The THK LM Guide Actuator Caged Ball LM Guide Actuator SKR26 Motor wrap represents a sophisticated integration of linear motion technology designed for high-precision automation. This system combines a caged ball LM guide mechanism with a built-in motor, creating a compact, self-contained linear actuator solution. The SKR26 model specifically features a 26mm rail width, optimized for balancing load capacity with space constraints in modern machinery. At its core, the caged ball design is a key technical innovation. Unlike conventional linear guides where balls circulate freely, this system encapsulates each ball within a dedicated cage. This configuration drastically reduces friction and prevents ball-to-ball contact, eliminating metal-on-metal wear and the need for frequent re-lubrication. The result is exceptionally smooth motion with consistent coefficient of friction across the entire travel length. The caged structure also prevents ball dropout during disassembly, simplifying maintenance procedures. The integrated motor wrap technology ensures direct drive transmission without backlash, providing precise positional accuracy repeatable to within micrometers. Performance advantages are substantial across multiple parameters. The caged ball design enables higher maximum speeds compared to standard linear guides, reaching up to 5 m/s while maintaining stability. Vibration and noise levels are significantly reduced by up to 70% compared to conventional designs, particularly beneficial in cleanroom and laboratory environments. The system achieves an impressive lifespan rating exceeding 10,000 km under normal operating conditions, thanks to reduced wear mechanisms. Load capacity is distributed evenly across multiple precisely aligned balls, allowing the SKR26 to handle moment loads up to 1.2 kN·m while maintaining accuracy. The integrated motor configuration eliminates coupling alignment issues and reduces overall system length by approximately 30% compared to separate motor and guide assemblies. In industrial automation, these actuators are deployed in precision pick-and-place systems where high-speed positioning and minimal particulate generation are critical, particularly in semiconductor wafer handling and electronic component assembly. The automotive manufacturing sector utilizes them in automated welding guns requiring precise electrode positioning and in engine component testing equipment demanding vibration-free linear motion. For precision equipment applications, the SKR26 series excels in medical device manufacturing for catheter cutting machines and in optical instrument positioning stages where sub-micron accuracy is mandatory. The corrosion-resistant options available make these actuators suitable for food processing packaging machinery and pharmaceutical tablet pressing equipment where washdown requirements exist.

The THK LM Guide Actuator Caged Ball LM Guide Actuator SKR26 is a high-precision linear motion system engineered for applications demanding exceptional rigidity, smooth operation, and long-term reliability. This actuator integrates a recirculating ball screw with a compact, high-rigidity LM guide block, creating a unified assembly that provides both guided motion and high-efficiency force transmission. A defining feature of the SKR26 is its caged ball technology, where the load-carrying steel balls within the LM guide are separated and retained by a synthetic resin cage. This design fundamentally eliminates metal-on-metal contact between the balls, drastically reducing friction, heat generation, and wear. The result is a significantly smoother and quieter motion profile, with a consistent, low coefficient of friction that remains stable over the system's entire operational lifespan. Key technical features of the SKR26 include its compact cross-sectional dimensions, which allow for space-saving integration into machinery with limited envelope constraints. The ball screw is precision-ground, offering high positional accuracy and repeatability, while the LM guide block is designed with four rows of balls arranged in an arc-groove contact configuration. This structure provides a high load capacity in all directions—radial, reverse-radial, and lateral—ensuring stability under complex loading conditions. The caged ball design not only enhances performance but also simplifies maintenance, as it prevents ball-to-ball contact and the associated wear debris, leading to cleaner operation and extended maintenance intervals. Pre-loaded ball nuts and guide blocks are available to eliminate backlash, making the actuator ideal for applications requiring high positional precision. The performance advantages of the SKR26 are substantial. Its low-friction operation translates directly into higher efficiency, allowing for the use of smaller, more energy-efficient motors and drives. The high rigidity minimizes deflection under load, which is critical for maintaining accuracy during high-speed movements and heavy cutting or machining forces. Furthermore, the longevity of the system is markedly improved due to the reduced wear on the balls and raceways, ensuring consistent performance and precision over millions of cycles with minimal degradation. Typical applications for the THK SKR26 actuator are found across demanding industrial sectors. In industrial machinery, it is extensively used in CNC machining centers for tool changer arms, in semiconductor manufacturing equipment for precise wafer handling and positioning stages, and in automated assembly lines for high-speed pick-and-place units. Within the automotive industry, the actuator is deployed in robotic welding and painting arms, where smooth, vibration-free motion is essential for quality, and in precision testing equipment for component validation. In the realm of precision equipment, the SKR26 is a critical component in medical device manufacturing systems, coordinate measuring machines (CMMs), and optical alignment apparatuses, where its combination of high accuracy, rigidity, and smooth motion is indispensable for achieving micron-level tolerances.

THK's LM Guide Actuator Caged Ball LM Guide Actuator SKR20 Motor wrap represents a sophisticated integration of linear motion technology designed for high-precision, high-load applications in demanding industrial environments. This system combines THK's renowned LM Guide technology with a caged ball design and a built-in motor, creating a compact, efficient, and highly reliable actuation solution. The SKR20 model features a robust housing that encapsulates the motor, protecting it from contaminants such as dust, chips, and fluids, which is critical in harsh operating conditions. The caged ball mechanism ensures smooth, low-friction movement by retaining the balls in a cage, preventing contact between them and reducing noise, heat generation, and wear. This design also allows for higher speeds and accelerations compared to traditional retainer-based systems, making it ideal for dynamic applications. Key technical features include a precision-ground rail and block assembly that provides exceptional rigidity and accuracy, with repeatability down to micrometers. The integrated motor wrap simplifies installation by eliminating the need for external coupling components, reducing alignment issues and maintenance requirements. The actuator supports high load capacities in all directions—radial, reverse-radial, and lateral—thanks to its optimized ball groove geometry and high-grade steel construction. Additionally, it offers excellent resistance to vibration and shock, ensuring stable performance even under fluctuating loads. Lubrication systems are designed for long-term operation with minimal upkeep, and options for seals and wipers enhance durability in contaminated environments. Performance advantages of the SKR20 Motor wrap actuator stem from its ability to deliver consistent, high-speed linear motion with minimal backlash and high positioning accuracy. This results in improved productivity, reduced downtime, and lower total cost of ownership for machinery. The compact design saves valuable space in equipment layouts, while the high efficiency translates to energy savings and reduced heat output. Its quiet operation is beneficial in noise-sensitive settings like medical or laboratory equipment. Typical applications span across industrial machinery, where it is used in CNC machining centers for tool changers, automated assembly lines for pick-and-place operations, and packaging machinery for precise product handling. In automotive systems, it facilitates tasks such as robotic welding, engine component testing, and brake system assembly, where precision and reliability are paramount. For precision equipment, this actuator is employed in semiconductor manufacturing for wafer handling, optical inspection systems for lens positioning, and medical devices like MRI scanners or automated diagnostic instruments. By addressing the needs of high-speed, high-accuracy, and harsh-environment applications, THK's LM Guide Actuator SKR20 Motor wrap stands as a versatile solution for advancing automation and efficiency in modern industry.

THK's LM Guide Actuator SKR20 represents a significant advancement in linear motion technology, integrating the precision of a caged ball LM guide with the compact efficiency of an actuator system. This design is engineered to deliver exceptional performance in applications demanding high rigidity, smooth motion, and long-term reliability. The SKR20 model features a unique caged ball retainer system that separates and guides the balls within the raceway, minimizing friction, reducing heat generation, and virtually eliminating metal-to-metal contact. This results in quieter operation, extended service life, and consistent accuracy even under high-load conditions. Key technical features of the SKR20 include its compact cross-sectional design, which allows for space-saving integration into machinery without sacrificing load capacity. The caged ball mechanism ensures uniform ball circulation, preventing skewing and reducing torque variation for smoother linear movement. It offers high positioning accuracy with minimal backlash, supported by precision-ground raceways and optimized ball groove geometry. The actuator is pre-lubricated for maintenance-free operation in many environments and is available with optional seals to protect against dust, chips, and moisture in harsh industrial settings. Compatibility with various motor types, such as servo or stepper motors, enhances its adaptability to diverse automation needs. Performance advantages of the SKR20 are evident in its ability to handle combined loads—radial, reverse radial, and lateral—with high stiffness, making it ideal for applications requiring precise guidance and stability. Its low friction coefficient translates to higher efficiency, reducing power consumption and enabling faster acceleration and deceleration cycles. The caged ball design also prevents ball-to-ball contact, reducing wear and noise levels, which is critical in cleanroom or noise-sensitive environments. With a rated load capacity tailored for industrial demands, it maintains precision over long travel distances, supported by THK's expertise in surface treatment and material selection for corrosion resistance. Typical applications span across industrial machinery, where the SKR20 is used in CNC machining centers for tool changing systems, automated assembly lines for pick-and-place operations, and semiconductor manufacturing equipment for precise wafer handling. In automotive systems, it facilitates precise positioning in robotic welding arms, engine component testing fixtures, and battery assembly lines for electric vehicles. For precision equipment, it finds use in medical devices like MRI scanner tables, optical alignment systems in lithography, and coordinate measuring machines (CMMs) where repeatability and accuracy are paramount. By combining reliability with technical sophistication, the THK LM Guide Actuator SKR20 empowers engineers to enhance productivity and innovation in demanding sectors.