THK Co., Ltd. FBW50110H+400L Slide Pack Heavy Load

The THK FBW50110H+400L Slide Pack is a heavy-load linear guide assembly that combines one recirculating ball slider with a 400 mm precision guide rail to deliver smooth, low-friction motion under demanding industrial loads. This high-rigidity guide supports machine tools, heavy-duty sliding mechanisms, packaging machinery, and material handling systems, and is commonly used by maintenance teams and system integrators for repair, retrofit, or new machine construction in automation equipment environments. Key specs include a 400 mm rail length; a travel stroke of 270 mm without seals and 264 mm with seals; slider mass about 420 g and rail mass about 990 g; static permissible loads Pa 1,960 N, Pb 500 N, and Pc 390 N. The assembly uses a nitrided steel guide rail with a precision recirculating ball mechanism, factory-lubricated with lithium soap-based grease No. 2, and mounting holes for M5 socket-head screws. Features emphasize heavy-load capacity, high rigidity, low noise, corrosion resistance, compact construction, and long service life. The FBW50110H is the original heavy-load design in THK’s FBW series and has been discontinued in favor of the FBW50110XR+400L with updated rail design; common replacements include the THK FBW50110XR+400L, FBW50110H+450L, and FBW50110H+300L slide packs.