THK LBF30UUCL215L Linear Spline Bush Bearing

THK LBF30UUCL215L is a precision linear spline bush bearing in the LBF series that provides smooth linear motion while transmitting torque through a precision splined shaft. The unit uses a recirculating ball mechanism with a 30 mm nominal shaft diameter and a CL medium preload, delivering high rigidity and accurate positioning in compact automation systems. It features UU double-end seals, supports grease or oil lubrication, and includes an oil hole for lubrication flow. Constructed from iron-based bearing steel, it operates from -15 °C to 80 °C (80 °F max). The bearing supports linear motion with torque transmission, and is compatible with precision splined shaft configurations. Common applications include industrial robots, pick-and-place and semiconductor manufacturing equipment, automated assembly and packaging machines, and precision handling equipment where simultaneous motion and torque transmission are required. It is commonly used by maintenance teams, OEM machine builders, and system integrators for repairs, retrofits, and replacing worn linear spline bearings. Related replacements include THK LBF30UUCM, THK LBF30UUC, and THK SLF30UUCL.