THK’s EK SERIES Ball Screw Support Unit Square Fixed Side provides a robust, precision-engineered solution for stabilizing ball screw assemblies in demanding linear motion applications. This fixed-side support unit features a square housing design that ensures secure mounting and optimal alignment with ball screws, effectively absorbing axial loads and preventing deflection during operation. Manufactured from high-strength carbon steel with a black oxide finish, the unit offers exceptional corrosion resistance and durability in harsh industrial environments. Its compact, space-saving design incorporates precision-ground contact surfaces and pre-loaded angular contact bearings, delivering high rigidity and minimal axial play for consistent performance under heavy loads and high-speed conditions.

Key technical features include standardized mounting dimensions for easy integration with THK ball screws, a labyrinth seal structure that effectively excludes contaminants while retaining lubrication, and a temperature-resistant design that maintains stability across operating temperatures from -10°C to 80°C. The unit supports ball screw diameters ranging from 15mm to 80mm, with dynamic load ratings up to 50kN and rotational speed capabilities reaching 5,000 rpm depending on model specifications. The pre-adjusted bearing clearance eliminates the need for complex alignment procedures during installation, while the square housing design provides four mounting surfaces for flexible installation orientations.

Performance advantages stem from THK’s precision manufacturing standards, resulting in reduced vibration, lower noise levels, and extended service life compared to conventional support units. The optimized bearing configuration minimizes friction torque, contributing to higher mechanical efficiency and reduced power consumption in driven systems. Enhanced sealing performance protects against dust, chips, and other particulate contamination common in industrial settings, making the EK SERIES particularly suitable for applications requiring maintenance-free operation over extended periods. The unit’s high rigidity ensures accurate positional repeatability within microns, critical for precision machining and automation processes.

Typical applications span multiple industries where reliable linear motion is paramount. In industrial machinery, these support units are integral components in CNC machining centers, injection molding machines, and precision grinding equipment, where they maintain ball screw alignment under heavy cutting forces and continuous operation. Automotive manufacturing systems utilize them in robotic welding arms, automated assembly lines, and precision testing equipment that demand high load capacity and positional accuracy. Within precision equipment sectors, the EK SERIES finds application in semiconductor manufacturing apparatus, optical positioning systems, and medical device automation where minimal backlash and vibration-free operation are essential. The units also serve critical functions in material handling systems, packaging machinery, and industrial robotics where consistent performance under varying load conditions ensures operational reliability and reduced downtime.