THK Co., Ltd. LMF30 Round Flanged Linear Bushing

The THK LMF30 round-flanged linear bushing delivers smooth, low-friction, high-precision linear motion on a 30 mm shaft, with an integrated round flange for secure face mounting. This THK round-flange linear ball bearing, part of the LMF Series, provides high rigidity and reliable performance in demanding linear motion tasks across CNC machine tools, automation equipment, robotics, packaging machinery, semiconductor systems, and precision assembly equipment. Key dimensions include a 30 mm nominal shaft diameter, 45 mm outer diameter, 64 mm overall length, and 74 mm flange diameter. It uses recirculating steel balls as the rolling element and offers a basic dynamic load rating of 1,570 N and a basic static load rating of 2,750 N. Construction is hardened bearing steel, and lubrication can be grease or oil to suit maintenance intervals. Common replacements include THK LMF30L, LM30UU, and LMCF30UU. This bushing is favored by maintenance teams, OEM machine builders, and system integrators for equipment repairs, retrofits, and replacement of worn linear bearings, delivering stable, precise motion in applications such as CNC machining centers, automated production lines, and precision assembly systems.