THK’s LMCK L SERIES Linear Bushing flanged type Square Flange Model represents a high-performance, compact linear motion solution engineered for precision, durability, and ease of integration in demanding industrial environments. This flanged-type ball bushing linear bushing features a square flange design that simplifies mounting and enhances structural rigidity, making it ideal for applications where space constraints and alignment accuracy are critical. Constructed from high-carbon chromium bearing steel, the LMCK L SERIES undergoes rigorous heat treatment processes to achieve superior surface hardness and core toughness, ensuring exceptional wear resistance and long service life even under high-load conditions. The precision-ground raceways and optimized ball circuit design minimize friction and provide smooth, low-noise operation, contributing to enhanced positioning accuracy and repeatability.

Key technical features include the incorporation of high-grade steel balls with controlled diameter variations, which distribute loads evenly and reduce vibration during operation. The bushing’s compact cross-section maximizes load capacity while minimizing overall dimensions, allowing for more streamlined machine designs. A corrosion-resistant surface treatment, typically chrome plating or black oxide coating, protects against environmental factors such as moisture and chemical exposure. The square flange configuration offers multiple mounting hole patterns, facilitating secure attachment to machine bases, slides, or actuators without requiring additional adapters. Maintenance-friendly design elements, such as integrated grease grooves and optional seals, enable effective lubrication retention and contamination exclusion, reducing downtime and extending maintenance intervals.

Performance advantages of the LMCK L SERIES include its ability to handle combined loads—supporting radial, reverse radial, and moment loads simultaneously—thanks to its four-point contact structure. This capability ensures stable motion control and minimizes deflection under complex force conditions. The low coefficient of friction results in higher efficiency, reducing power consumption and heat generation in continuous operation. With precision grades available, these bushings achieve running accuracy within micrometers, making them suitable for applications demanding tight tolerances. Their high-speed compatibility, facilitated by optimized recirculation systems, allows for rapid reciprocating motions without sacrificing smoothness or generating excessive noise.

Typical applications span across industrial machinery, where LMCK L SERIES units are deployed in CNC machine tool slides, automated assembly robots, and precision measuring instruments. In automotive systems, they serve in welding equipment, engine component positioning devices, and brake system test rigs, where reliability and precision are paramount. Within precision equipment, these linear bushings are integral to semiconductor manufacturing tools, optical alignment stages, and medical device actuators, ensuring micron-level accuracy and contamination-free operation. Their robust construction and versatility also make them suitable for packaging machinery, material handling systems, and aerospace instrumentation, where consistent performance under varying temperatures and loads is essential. By combining advanced materials, precision engineering, and user-centric design, THK’s LMCK L SERIES delivers a reliable linear motion foundation that enhances machine efficiency, reduces lifecycle costs, and supports innovation across diverse technological fields.