THK Co., Ltd. BNF3212S-5RRG0973LC5 Ball Screw Assembly

The THK BNF3212S-5RRG0973LC5 Ball Screw Assembly features a 32 mm screw shaft diameter, a 12 mm lead, and an overall shaft length of 973 mm. As a precision-ground ball screw, it converts rotary motion into highly accurate linear motion with low friction and high rigidity, designed for high-load, high-precision positioning tasks. It uses a single flanged nut in the BNF series, with an accuracy grade of C5, and the assembly supports grease or oil lubrication with a hardened alloy steel shaft. Common applications include CNC machining centers, machining tools, semiconductor equipment, and precision automation systems; the FANUC OEM part number is A97L-0118-0299.