| 摘要 |
A spring unit for installation in a pivot pin assembly. The spring unit including a pair of disc springs each with an axially centered aperture and each with, when in an uncompressed condition, a concave side and a convex side. Retaining means for retaining the pair of disc springs in an orientation suc h that the concave sides of the disc springs face each other. The retaining means includes a means for securing the disc springs to the retaining means such that the retaining means and the disc springs can be easily installed in the pivot pi n assembly as a unit. The spring unit further includes a centering means provided on the retaining means and for centering the apertures of the disc springs about the pivot pin of the pivot pin assembly when the disc springs are in a compresse d condition.
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