Wheel rolling bearing apparatus
AssigneeJtekt Corporation
InventorTakaaki Onizuka
Life of this patent
Estimating the term…
Abstract
To provide a wheel rolling bearing apparatus which can reinforce a proximal end portion of a first flange portion of an outer race member effectively. A first flange portion 21 is provided on an upper portion side of an outer circumference of an outer race member 11. A first reinforcement portion 26 is provided which connects a proximal end portion 21b of the first flange portion 21 with the outer circumferential surface 11c of the outer race member 11. The first flange portion 21 is reinforced by the first reinforcement portion 26 by connecting the proximal end portion of the first flange portion 21 with the outer circumferential surface 11c by a convexly curved surface.
Claims2
A wheel rolling bearing apparatus comprising:
- an outer race member which has a first flange portion having a bolt hole and a second flange portion having a bolt hole which are projected on an upper portion side and a lower portion side, respectively, and which is attached to a vehicle side via the first and second flange portions;
- an inner race member which is disposed inwards of an inner circumference of the outer race member and to which a wheel is attached;
- and
- a plurality of rolling elements which are interposed between the outer race member and the inner race member, characterized in that
- a first reinforcement portion is projected on at least a proximal end portion of the first flange portion which lie on both sides of the bolt hole to reinforce the proximal end portion by connecting the proximal end portion with an outer circumferential surface of the outer race member, and
- an upper surface of the first reinforcement portion which connects the proximal end portion of the first flange portion with the outer circumferential surface of the outer race member constitutes a convex curve or a straight line in an axial section thereof.
Dependencies are inferred from the claim text.