| 摘要 |
Self-aligning stationary composite adapted for use in a sealing assembly for pumps, and other machinery including rotary shafts, which includes a pair of rings, non-rotatably disposed in coaxial, colinear relation in an annular recess of a cylindrical gland, mechanically secured to the pump housing. The first ring of the composite, which is seated against the inner wall of the gland recess, has a U-shaped annular cavity filled with viscous liquid, which telescopically accommodates the inwardly-directed annular projection of the second ring of the composite. The annular outer face of the second ring provides a smooth surface against which the rotor attached to the shaft bears in sealing relation during rotation. The viscous liquid interposed into the U-shaped cavity, which may be silicone jelly, permits relative adjustment in an axial direction between the rings during rotation of the shaft, to compensate for misalignment between the rotating and the non-rotating parts.
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