Shaft type wheel hub brake disc assembly of round pin that is used for commercial car of area heat dissipation and strengthening rib

The utility model provides a shaft type wheel hub brake disc assembly of round pin that is used for commercial car of area heat dissipation and strengthening rib, include the wheel hub who constitutesby wheel hub flange and wheel hub bearing position, the brake disc includes the brake disc body, the brake disc body circles in the disc of wheel hub one side and is equipped with the connection keyway, the last connection spline that is equipped with of wheel hub bearing position, the brake disc body is through connecting the keyway and connecting the spline dress on wheel hub bearing position,it is equipped with the location strengthening rib that colored key top face is connected to the protrusion to connect the spline on the side of wheel hub flange with on wheel hub bearing position's the outer wall, it runs through the first semicircle through -hole of fixing a position the strengthening rib to be equipped with on at least one connection flower key top face, be equipped with secondsemicircle through -hole i