Synthetic resin thrust sliding bearing constituted

Synthetic resin thrust sliding bearing constituted

  • CN 102,132,054 B
  • Filed: 08/25/2009
  • Issued: 11/25/2015
  • Est. Priority Date: 08/26/2008
  • Status: Active Grant
First Claim
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1. a synthetic resin thrust sliding bearing constituted for the mopherson type suspention in four-wheel motor vehicle, it comprises:

  • Synthetic resin upper casing, this upper casing has upper annular planar portion, synthetic resin lower casing, this lower casing has lower annular flat plate-like portion, the first and second annular projections and lower annular grooving, wherein, described lower annular flat plate-like portion to overlap on described upper casing thus to rotate around the axis of described upper casing and relative with described annular planar portion, first and second annular projection described and described lower annular flat plate-like portion are arranged on described lower annular flat plate-like portion with one heart, described lower annular grooving by described first and described second annular projection around, and synthetic resin thrust bearing sheet, described thrust-bearing sheet is made up of disk, this disk is arranged in lower annular grooving, with the lower described lower annular flat plate-like portion upper surface of annular grooving bottom surface of restriction and the lower surface sliding contact of described annular planar portion, described disk wherein heart portion has circular hole, engage with the outer periphery elasticity of described lower casing by making the outer periphery of described upper casing, thus described upper casing and described lower casing are linked, the feature of described synthetic resin thrust sliding bearing constituted is, silicone grease is namely between and limits the lower described lower annular flat plate-like portion upper surface of annular grooving bottom surface and the sliding interface place between the upper surface of described annular planar portion lower surface and described thrust-bearing sheet and lower surface, the upper surface of described thrust-bearing sheet and lower surface respectively with described lower annular flat plate-like portion upper surface and the sliding contact of described annular planar portion lower surface, wherein, the base oil of described silicone grease is silicone oil, its coefficient of kinematical viscosity at 25 DEG C is not less than 1000cSt and not higher than 100000cSt, described silicone grease also has water-thickening agent and is not less than 250 and not higher than 350 the work infiltration capacity of described silicone grease to be adjusted to, described silicone oil is pure silicon oil or the silicone oil of modification,Described silicone grease has to be not less than 3 % by weight and the water-thickening agent being not more than the ratio of 50 % by weight.

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