To provide a bearing device for a wheel capable of maintaining the hermiticity of its seal and realizing lower torque with its bearing.
In a bearing device for a wheel, at least a seal 9 on an inner side of seals comprises a slinger 11 and an annular seal plate 12 whose cross sections are formed in a substantially L shape and which are arranged opposite to each other. The slinger 11 is provided with a cylinder part 11a externally fitted to an inner member 1 and a rising plate part 11b extending outward radially from the cylinder part 11a. The seal plate 12 is equipped with a first side lip 14a and second side lip 14b whose tips come into slide-contact with the rising plate part 11b of the slinger 11 with predetermined interferences and a grease lip 14c whose tip has no contact with the cylinder part 11a of the slinger 11.
ADACHI TATEO
HIRAI ISAO
