HUB UNIT WITH SENSOR

A brake caliper 12 is fastened to a fixed-side raceway member 3 of a hub unit 1 as an assembly. The fixed-side raceway member 3 has a caliper mount 10 extending radially outwardly thereof and having the brake caliper 12 attached thereto. A sensor device 2 has strain gauges 2a serving as a brake torque sensor and provided on the fixed-side raceway member 3. The strain gauges 2a are provided at the base end 10a of the caliper mount 10 of the fixed-side raceway member 3.