Hollow flange reaction torque sensor FTQ features a large bore design,normally used torque measuring applications where inserting a rotating mass between the driving and driven elements is infeasible.With a hollow design, the rotating shaft can pass through the center of the torque meter, which enables measurement of torque regardless of the rotating speed. Here are some advantages of hollow torque sensors compared to rotary torque meters: Less expensive; Tolerating higher axial load; With no limits on the rotating speed; Taking up less space due to their short length; More durable since no rotating parts are involved; More flexible in terms of customization. Forsentek is also willing to provide custom made service for hollow style torque sensors if the standard specifications are not applicable.