THK’s LM Roller Metal Ball Retainer Model LRB SERIES represents a significant advancement in linear motion technology, engineered to deliver exceptional precision, durability, and reliability in demanding industrial environments. This series features a unique roller-based design that incorporates a metal ball retainer, which effectively minimizes friction, reduces wear, and ensures smooth, consistent motion over extended operational periods. The LRB SERIES is characterized by its robust construction, utilizing high-grade materials such as hardened steel for rollers and retainers, coupled with advanced sealing mechanisms to protect against contaminants like dust, debris, and moisture. Key technical features include a compact, space-saving profile that allows for easy integration into machinery with limited real estate, while maintaining high load capacities—both radial and axial—for versatile application across various industries. The design also emphasizes low noise operation and minimal maintenance requirements, thanks to its self-lubricating properties and optimized retainer geometry that prevents ball-to-ball contact, reducing vibration and enhancing overall system stability.
Performance advantages of the LRB SERIES are substantial, offering improved positioning accuracy and repeatability, which are critical for applications requiring micron-level precision. The reduced friction coefficient translates to higher efficiency, enabling faster speeds and accelerations without compromising on lifespan or heat generation. This results in energy savings and lower operational costs, as the components endure harsh conditions with minimal degradation. Additionally, the series excels in shock resistance and can handle moment loads effectively, making it suitable for dynamic systems where sudden forces or directional changes are common. Its corrosion-resistant treatments and optional coatings further extend service life in corrosive or high-humidity settings, ensuring consistent performance in challenging environments.
Typical applications for the LRB SERIES span a wide range of sectors, including industrial machinery where it is employed in CNC machines, robotic arms, and automated assembly lines for precise part handling and positioning. In automotive systems, it finds use in engine components, transmission systems, and suspension mechanisms, contributing to enhanced vehicle performance and safety through reliable linear guidance. For precision equipment, such as medical devices, semiconductor manufacturing tools, and optical instruments, the LRB SERIES provides the stability and accuracy necessary for delicate operations, reducing errors and improving product quality. Overall, this model is a go-to solution for engineers seeking to optimize motion control in applications that demand high speed, heavy loads, and long-term reliability, solidifying THK’s reputation for innovation in linear motion components.
| Model No. | Main dimensions | Basic load rating | ||||
| W1 0 -0.1 |
Length L |
Thickness T |
Width
W0 |
Dynamic rating C |
Static rating C0 |
|
| mm | mm | mm | mm | kN | kN | |
40 |
95 |
31 |
55 |
150 |
326 |
|
50 |
130 |
43 |
76.2 |
285 |
577 |
|