The THK LMIH SERIES flanged type Cut Flange Model LMIH linear bushings represent a specialized evolution in the Ball Bushing Linear Bushing family, engineered for high-load capacity and exceptional rigidity in compact linear motion systems. Featuring a unique cut-flange design, these units provide versatile mounting options, allowing for secure fixation from the top or side, which simplifies installation and enhances design flexibility in space-constrained applications. The construction incorporates a precision-engineered outer sleeve with a cutout section on the flange, maintaining the structural integrity necessary for demanding operational environments. Key technical features include the utilization of high-grade chromium steel for both the outer ring and precision-ground balls, ensuring durability and long service life. The balls are arranged in a optimized recirculation system with a reinforced resin retainer, which minimizes friction, reduces noise, and prevents ball-to-ball contact, thereby extending component lifespan. The flanged design inherently provides high moment load resistance, making these bushings suitable for applications subject to tilting or overturning forces. Additionally, the inclusion of seals or shields at both ends effectively excludes contaminants such as dust and chips while retaining grease lubrication, which is critical for maintaining performance in harsh industrial settings. Performance advantages of the LMIH SERIES are substantial, offering smooth, low-friction linear motion with high positional accuracy and repeatability. The compact flange design allows for direct mounting onto machine frames, reducing the need for additional support structures and saving valuable space. This series excels in handling both radial and moment loads efficiently, contributing to stable operation under varying dynamic conditions. The low maintenance requirements, coupled with the ability to operate at high speeds with minimal wear, result in reduced downtime and lower total cost of ownership for end-users. Typical applications span across multiple high-performance sectors. In industrial machinery, these linear bushings are integral to automated assembly lines, precision machining centers, and material handling equipment where reliable linear guidance is paramount. Within automotive systems, they are employed in robotic welding arms, engine component testing fixtures, and transmission assembly jigs, benefiting from their robustness and precision. In the realm of precision equipment, the LMIH SERIES finds use in semiconductor manufacturing apparatus, medical device positioning systems, and optical instrument stages, where minimal vibration and high accuracy are critical. Their versatility and reliability make them a preferred choice for engineers seeking to enhance the performance and longevity of linear motion systems across diverse industries.

The THK LMIH Series flanged type Cut Flange Linear Bushings represent a specialized evolution in linear motion technology, engineered to deliver exceptional precision, rigidity, and operational smoothness in demanding industrial environments. These compact, high-performance bushings are part of the renowned Ball Bushing lineup, designed to accommodate linear motion with minimal friction and high positional accuracy. The defining feature of the LMIH model is its uniquely designed cut flange, which provides enhanced mounting flexibility and space-saving benefits, making it an ideal solution for applications where conventional flanged bushings are impractical due to spatial constraints or complex assembly requirements. Constructed from high-grade chromium steel and subjected to rigorous heat treatment processes, the LMIH Series bushings exhibit superior hardness, wear resistance, and long-term dimensional stability. The internal structure incorporates a precision-engineered ball retainer that ensures smooth, continuous recirculation of the load-bearing balls, effectively minimizing torque fluctuations and preventing slippage even under high-speed or high-frequency reciprocating motions. A critical technical feature is the inclusion of THK's proprietary crowning technology on the ball grooves, which optimizes contact stress distribution between the balls and the raceway. This design significantly reduces edge loading, suppresses vibration, and extends the service life of both the bushing and the mating shaft. The flanged configuration simplifies installation by providing secure mounting holes, while the cut design allows for radial assembly onto the shaft without requiring end-side access, drastically reducing machine assembly time and complexity. Performance advantages of the LMIH Series are substantial across multiple metrics. They offer significantly lower coefficients of friction compared to plain bushings, resulting in higher mechanical efficiency, reduced energy consumption, and less heat generation. The high rigidity and load capacity—supporting radial, reverse radial, and moment loads—enable stable operation under heavy cutting forces or uneven loading conditions. Their compact flange design saves valuable space within machinery, allowing for more streamlined equipment layouts. Additionally, these bushings maintain consistent accuracy over millions of cycles, with minimal maintenance requirements thanks to effective sealing options that exclude contaminants like metal chips and dust. Typical applications span industries where precision, reliability, and space optimization are critical. In industrial machinery, LMIH bushings are extensively used in CNC machining centers for tool changer mechanisms, automated pallet changers, and precision slides for grinding and milling operations. The automotive sector employs them in robotic welding arms, precision assembly jigs, and testing equipment positioning systems. Within precision equipment, they facilitate accurate linear movement in semiconductor manufacturing apparatus, optical alignment stages, and medical device automation components where smooth, vibration-free motion is essential for product quality and process repeatability.