To provide a bearing device for a wheel capable of achieving both of low torque and muddy water resistance.SOLUTION: In a bearing device for a wheel including a seal device 9 for sealing a bearing space between an outer member and an inner member, the seal device 9 is composed of a core metal 91 fitted to the outer member 2 and a seal body 90 fixed to the core metal 91, and the seal body 90 is composed of two kinds of seal members 92, 93 different in hardness. Two kinds of seal members 92, 93 are respectively fixed to the core metal 91 in a state of separating from each other and formed by using such materials that the hardness of the seal member 93 disposed on a position near an outer peripheral side of the inner member 1 becomes higher than the hardness of the seal member 93 disposed on a position near an outer peripheral side of the inner member 1.SELECTED DRAWING: Figure 2
【課題】この発明は、低トルクと耐泥水性の両立性を図った車輪用軸受装置を提供する。【解決手段】外方部材と内方部材との間の軸受空間を密封するシール装置9を備える車輪用軸受装置であって、シール装置9は、外方部材2に嵌合される芯金91と、この芯金91に固着されたシール体90とからなり、シール体90は、硬度の異なる2種類のシール部材92、93からなり、2種類のシール部材92、93は、芯金91にそれぞれ分離して固着され、内方部材1の内周側に近い位置に設けられるシール部材93の硬度より内方部材1の外周側に近い位置に設けられるシール部材93の硬度が高い材料を用いて形成されている。【選択図】図2
BEARING DEVICE FOR WHEEL
車輪用軸受装置
2023-03-20
Patent
Elektronische Ressource
Japanisch