Search
Model NURT

THK’s Roller Follower Model NURT represents a specialized advancement in linear motion technology, engineered to deliver exceptional precision and durability in demanding applications. This compact yet robust component features a cylindrical outer ring with a crowned outer surface, housing a full complement of needle rollers retained by a highly resilient polyamide resin cage. The integrated stud axle is manufactured from high-carbon chromium bearing steel, heat-treated to achieve superior surface hardness and core toughness, while the outer ring undergoes precision grinding to maintain tight dimensional tolerances and optimal surface finish. A critical design element is the inclusion of sealed configurations, where high-performance contact seals effectively prevent ingress of contaminants such as metal chips, dust, and moisture, while retaining lubrication for extended service intervals. The NURT series is available in both standard and sealed variants, with stud end options including tapped holes or flat grooves to accommodate diverse mounting requirements.

Performance advantages of the NURT Roller Follower stem directly from its meticulous engineering. The crowned outer ring profile minimizes edge loading and stress concentration, distributing loads evenly across the roller path even under misalignment conditions, which significantly prolongs service life and maintains smooth motion characteristics. Its high load-carrying capacity, derived from the full complement needle roller arrangement, enables it to withstand substantial radial and moment loads in compact envelopes, making it ideal for space-constrained designs. Low friction operation is achieved through the optimized roller geometry and cage design, reducing heat generation and power consumption while enabling higher speeds. The sealed versions offer enhanced reliability in harsh environments, maintaining performance integrity in the presence of particulate debris or splashed fluids. These attributes collectively contribute to reduced maintenance demands, lower total cost of ownership, and improved operational uptime for machinery.

Typical applications for the THK NURT Roller Follower span a broad spectrum of industrial sectors where precise linear guidance and cam follower functions are paramount. In industrial automation and machinery, it is extensively employed in cam-driven indexing tables, transfer lines, and packaging equipment, where it ensures accurate follower motion along cam profiles with minimal backlash and wear. The automotive industry utilizes these components in welding robot arms, assembly jigs, and material handling systems, where their sealed construction withstands weld spatter and lubricant washout. Precision equipment applications include semiconductor manufacturing apparatus, optical positioning stages, and medical device automation, benefiting from the NURT’s smooth motion and contamination resistance. Additionally, it serves critical roles in printing presses, textile machinery, and food processing systems, where its durability and sealing performance meet the rigorous demands of continuous operation. By integrating the NURT Roller Follower, engineers achieve enhanced machine accuracy, reliability, and longevity across these diverse applications.

MORE +
CLOSE +
NURT-X SERIES
THK's Roller Follower Model NURT X SERIES represents a significant advancement in linear motion technology, engineered to deliver exceptional performance in demanding industrial environments. These components feature a robust outer ring integrated with a full complement of high-precision rollers, ensuring smooth, low-friction movement along guide surfaces. The NURT X SERIES incorporates a unique crowned outer ring profile, which minimizes edge loading and distributes contact stress evenly across the roller path, dramatically extending service life even under high moment loads or misalignment conditions. Constructed from case-hardened steel and subjected to THK's proprietary super-precision grinding process, these roller followers achieve exceptional dimensional accuracy and surface finish, critical for maintaining consistent preload and operational stability. Key technical features include an optimized internal seal design that effectively excludes contaminants like dust, chips, and moisture while retaining lubrication, making them suitable for harsh operating environments. The series offers various configurations including standard, stud-type, and yoke-type versions with different lubrication options to match specific application requirements. With precision-grade ABEC-1 bearings at their core, NURT X roller followers exhibit minimal rotational torque variation and maintain precise tracking along cam surfaces or guide rails. Their compact design maximizes load capacity within minimal envelope dimensions, providing engineers with flexible installation options while saving valuable space in machinery layouts. Performance advantages are substantial across multiple metrics. The crowned outer ring design increases allowable moment load capacity by up to 300% compared to conventional designs, while simultaneously reducing surface pressure by approximately 40%. This translates directly to extended component life—typically 3-5 times longer than standard followers—and reduced maintenance intervals. The optimized roller guidance system virtually eliminates skewing and delivers consistent rotational torque throughout the service life. Exceptional rigidity and impact resistance make these components ideal for applications involving shock loads or vibration, maintaining positional accuracy even under dynamic operating conditions. Typical applications span multiple industries where reliability and precision are paramount. In industrial automation, NURT X roller followers excel in cam-driven indexing systems, transfer lines, and packaging machinery where they provide precise motion control for pick-and-place operations. Automotive manufacturing systems utilize them extensively in welding robots, assembly fixtures, and material handling equipment that demand continuous operation under heavy loads. Precision equipment applications include semiconductor manufacturing apparatus, medical device assembly systems, and coordinate measuring machines where smooth, precise linear motion is essential for achieving micron-level accuracy. The series' corrosion-resistant options further expand their suitability for food processing, pharmaceutical, and cleanroom environments where washdown procedures or chemical exposure are routine.
View
NURT-R SERIES
The THK Roller Follower Model NURT NURT R SERIES represents a significant advancement in linear motion technology, engineered for applications demanding high rigidity, precision, and durability under challenging operational conditions. This series features a robust outer ring and a precisely ground stud, both manufactured from high-carbon chromium bearing steel (SUJ2), which is through-hardened to ensure exceptional wear resistance and longevity. The incorporation of a full complement of needle rollers, securely retained by a specially designed polyamide resin cage, maximizes the load-carrying capacity while minimizing friction and operational noise. A key technical feature is the inclusion of seals on both sides, which effectively prevent the ingress of contaminants such as dust, debris, and moisture, while retaining lubrication to extend service intervals and enhance reliability in harsh environments. The stud is manufactured to exacting tolerances with a fine finish, facilitating smooth rotation and precise alignment when mounted in machinery. Performance advantages of the NURT R SERIES are evident in its ability to handle heavy radial loads and moderate axial loads with minimal deflection, making it ideal for applications where space constraints and high load requirements coexist. The optimized internal geometry and high-quality materials contribute to a low coefficient of friction, reducing heat generation and energy consumption during operation. This results in improved efficiency and reduced maintenance needs, even in high-cycle or continuous-duty scenarios. The sealed design ensures consistent performance in contaminated or washdown environments, such as those found in food processing or automotive manufacturing, where exposure to coolants, lubricants, or particulate matter is common. Additionally, the series is available in various configurations, including standard and sealed options, with stud diameters and lengths tailored to specific application demands, allowing for seamless integration into existing systems. Typical applications for the THK NURT R SERIES span a broad spectrum of industrial sectors, underscoring its versatility and reliability. In industrial machinery, it is commonly employed in cam followers, guide mechanisms for conveyor systems, and support rollers in heavy-duty material handling equipment, where it ensures precise tracking and reduces wear on mating surfaces. Within automotive systems, the series finds use in assembly line jigs, welding robots, and suspension testing rigs, providing robust support and smooth motion under dynamic loads. In precision equipment, such as semiconductor manufacturing devices, packaging machinery, and printing presses, the NURT R SERIES delivers the accuracy and repeatability required for high-speed, high-precision operations. Its ability to maintain performance in demanding conditions makes it a preferred choice for engineers seeking to enhance the reliability and longevity of their linear motion systems, ultimately contributing to increased productivity and reduced total cost of ownership.
View
noksbearings

ABOUT US

PRODUCT