Sealing structure for reduced lubricant leakage in a spindle mot

Details Sealing structure for reduced lubricant leakage in a spindle mot Sealing structure for reduced lubricant leakage in a spindle mot

1998-10-06

2000-04-18

Klimowicz, William

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Record transport with head stationary during transducing

Disk record

360 9807, 360 9904, 310 67R, G11B 1702

Patent

active

060522577

ABSTRACT:
A sealing structure for minimizing the leakage of bearing lubricant is described. The sealing structure includes at least one labyrinth seal which is formed between a sealing surface on one component of a spindle motor and a restrictive ring formed on an opposing component of the spindle motor such that the ring projects into close proximity to the sealing surface. One of the components is a rotating component of the spindle motor and the other component is a stationary component of the spindle motor. At least one labyrinth seal includes a splash ring and a relief groove for collecting the lubricant particles that escape from a bearing assembly in the spindle motor.

REFERENCES:
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patent: 5487608 (1996-01-01), Leuthold et al.
patent: 5522601 (1996-06-01), Murphy
patent: 5552650 (1996-09-01), Cap et al.

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