A bearing apparatus for a wheel

摘要

A bearing apparatus for a wheel comprising a rolling bearing for rotatably supporting a wheel relative to a body of vehicle having double row rolling elements 20 arranged between an inner member 1 and an outer member 10; a wheel mounting flange 5 for fastening the wheel on a hub wheel 2; and an annular groove 7 formed on the wheel mounting flange 5 and having a predetermined width including hub bolts 6; characterized in that one side of the wheel mounting flange 5 at a region other than the annular groove 7 is formed as a cut-finished surface cut after the press fit of the hub bolts 6 .