To provide a combined seal ring capable of suppressing increase of seal torque and having excellent sealability, and a long-life hub unit bearing comprising the combined seal ring.SOLUTION: A slinger 51A of a combined seal ring 50A has a cylindrical part 52 fixed to an outer peripheral surface of an inward member 33, and a circular ring part 53 extending radially outward from one end part of the cylindrical part 52. A seal ring 61A comprises a core metal 62 having a core metal cylindrical part 64 fixed to the inner peripheral surface of an outward member 20 and a core metal circular ring part 65 extending radially inward from the other end part of the core metal cylindrical part 64, and a seal part 63 having seal lips 68, 69 that is brought into slide contact with the slinger 51A. The portion of the core metal circular ring part 65 close to the outer diameter is provided continuously in a circumferential direction, and has a low rigidity region 90 with lower rigidity than the surroundings.SELECTED DRAWING: Figure 2

    【課題】シールトルクの上昇を抑制すると共に、良好なシール性能を有する組合せシールリング及び該組合せシールリングを備える長寿命なハブユニット軸受を提供する。【解決手段】組合せシールリング50Aのスリンガ51Aは、内方部材33の外周面に固定される円筒部52と、円筒部52の一方の端部から径方向外方に延設された円輪部53と、を有する。シールリング61Aは、外方部材20の内周面に固定される芯金円筒部64と、芯金円筒部64の他方の端部から径方向内方に延設された芯金円輪部65と、を有する芯金62と、スリンガ51Aに摺接するシールリップ68、69を有するシール部63と、を備える。芯金円輪部65の外径寄り部分は、周方向に連続して設けられ、周囲よりも剛性が低い低剛性領域90を有する。【選択図】図2


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    Title :

    COMBINED SEAL RING AND HUB UNIT BEARING COMPRISING COMBINED SEAL RING


    Additional title:

    組合せシールリング及び組合せシールリングを備えるハブユニット軸受


    Contributors:

    Publication date :

    2025-01-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16C SHAFTS , Wellen / B60B VEHICLE WHEELS , Räder für Fahrzeuge / F16J Kolben , PISTONS



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