THK Co., Ltd. LMCF20LUU Round Center Flange Linear Bushing

The THK LMCF20LUU Round Center Flange Linear Bushing delivers smooth, low-friction linear motion on a hardened 20 mm shaft. This long-type, center-flanged bearing from THK (LMCF-L Series) uses a centered 54 mm flange to evenly distribute loads and mounting hardware for balanced travel and high positioning accuracy, with double-end seals (UU) for reliable operation. Key specs include a 20 mm nominal shaft diameter, 32 mm outer diameter, 80 mm overall length, 54 mm flange diameter, recirculating steel balls, and a basic dynamic load rating of 1.40 kN with a basic static load rating of 2.75 kN; lubrication can be grease or oil, and maximum operating temperature is 80 °C. Constructed from hardened bearing steel with a resin ball retainer, it is commonly used in CNC machinery, industrial automation systems, semiconductor equipment, packaging machines, medical devices, inspection equipment, linear actuators, and material handling systems, and is selected by maintenance teams, OEM machine builders, and system integrators for repairs, retrofits, and replacements of worn linear bushings.