THK BNF2806FM-5RRG1369LC5F Ball Screw Assembly

The THK BNF2806FM-5RRG1369LC5F Ball Screw Assembly is a precision-ground rotary-to-linear drive with a 28 mm screw shaft diameter, 6 mm lead, and an overall length of 1,369 mm. Made from hardened alloy steel with a single flanged nut, it delivers high rigidity and smooth motion, designed for high-accuracy positioning and compatible with grease or oil lubrication. As part of THK's BNF Series, the standard BNF2806V-5 configuration lists a Basic Dynamic Load Rating of 17.5 kN and a Basic Static Load Rating of 49.2 kN. The FM, RRG, LC5F suffixes are THK factory configuration codes with meanings not publicly documented; this assembly is commonly used in CNC machine tools, semiconductor manufacturing equipment, precision automation systems, measuring machines, and other industrial positioning applications, including work by system integrators for repair, retrofit, expansion, and replacement.