FT / FT-V Series Flat Roller

The Flat Roller uses precision rollers compliant with JIS B 1506, retained within a lightweight, high-rigidity cage formed by press-shaping a steel plate into an M-shaped structure. Each roller is securely held in a pocket to prevent it from dropping out. When installed between two raceways, the flat roller moves in the same direction as the table, but at half the travel distance. For example, when the table moves 500 mm, the flat roller travels 250 mm in the same direction. This motion characteristic enables smooth, highly accurate linear movement under heavy loads.

The FT and FT-V models feature a single row of rollers and are primarily used on flat guide surfaces. They provide stable rolling motion and high load capacity for linear guide systems where accuracy and rigidity are required on flat raceways.

Flat rollers are widely used in large machine tools such as planers, horizontal milling machines, and cylindrical grinding machines, as well as in high-precision equipment including surface grinders, cylindrical grinders, and optical measuring machines.