FIELD: mechanical engineering.
SUBSTANCE: device has sections provided with sealing ridges (nibs) and T-shaped or L-shaped sections which is mounted in the T-shaped or L-shaped internal ring bore with a radial spaced relation. The bore are made in the races and are spring-loaded by flat members. The sealing ridges (nibs) are made in block with the sections and are uniformly arranged over periphery with an optimal spaced relation to the shaft. The bottom central section mounted in the bottom race of the inner casing is provided with drain openings which connect the ring slot between the sealing rings and the shaft with the space between the inner ring bore and the sections.
EFFECT: enhanced reliability.
3 cl, 2 dwg
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