The invention discloses a maintenance-free hub bearing unit which comprises an outer ring, an inner ring and a rolling body arranged between the outer ring and the inner ring, the outer ring is a flange outer ring, an inner raceway is arranged on the inner ring, an outer raceway is arranged at the position, corresponding to the inner raceway, of the flange outer ring, and the rolling body is arranged between the outer ring and the inner ring. The outer raceway and the inner raceway are combined to form a raceway for rolling of a rolling body; the flange outer ring is formed by adopting a high-quality carbon structural steel integrated forging process, and the position corresponding to the outer raceway is subjected to induction quenching treatment; the induction quenching depth of the outer raceway is 1.5 to 4.5 mm; the hardness of a base body of the flange outer ring is 200-270 HB, and the hardness of a quenching part of a roller path part is 58-63 HRC. According to the invention, the mounting precision is high, the production efficiency is improved, and the weight is lighter.

    本发明公开了一种免维护轮毂轴承单元,包括外圈、内圈、设置在外圈和内圈之间的滚动体,所述外圈为法兰外圈,所述内圈上设置有内滚道,所述法兰外圈上对应内滚道的位置设置有外滚道,所述外滚道和内滚道组合形成供滚动体滚动的滚道;所述法兰外圈采优质碳素结构钢一体化锻造工艺成型,且对应外滚道的位置通过感应淬火处理;所述外滚道感应淬火深度1.5~4.5mm;所述法兰外圈基体硬度200~270HB,滚道部位淬火部位硬度58~63HRC。本发明能够让安装精度高,提高生产效率,并且更加轻量化。


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    Title :

    Maintenance-free hub bearing unit


    Additional title:

    免维护轮毂轴承单元


    Contributors:
    ZHANG JIYUN (author) / QU YUAN (author) / GAO ZHENGLIN (author) / CHEN QIANZAI (author)

    Publication date :

    2023-10-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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