Universal joint and spindle head dustproof sealing part thereof

Universal joint and spindle head dustproof sealing part thereof

  • CN 203,297,402 U
  • Filed: 05/09/2013
  • Issued: 11/20/2013
  • Est. Priority Date: 05/09/2013
  • Status: Active Grant
First Claim
Patent Images

1. universal joint spindle nose dust seal is characterized in that:

  • be comprised of seal body (31) and the sealing element framework (32) that is coated on described seal body (31) outside, the outer surface of described sealing element framework (32) is the two-stage stairstepping;

    Described seal body (31) comprises grease seal ring and dust ring, described grease seal ring and dust ring are structure as a whole, described grease seal ring comprises seal ring body (311-1) and at least two seal lips (311-2) that are arranged on seal ring body (311-1) inner ring and relative seal ring body (311-1) inclination, and described seal lip (311-2) tilts towards the direction of dust ring;

    Described dust ring comprises dust ring body (312-1), away from the outer dustproof lip (312-2) of grease seal ring with near the interior dustproof lip (312-3) of grease seal ring, described interior dustproof lip (312-3) is triangle, described leg-of-mutton one side overlaps with described dust ring body (312-1), and described outer dustproof lip (312-2) is towards the circle outer incline of dust ring.

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