Title:
DYNAMIC-PRESSURE TYPE FLUID BEARING UNIT
Document Type and Number:
Japanese Patent JPS6152414
Kind Code:
A
Abstract:
PURPOSE:To reduce the starting torque and obtain the stable performance over a wide temperature range by using the lubricant which consists of grease having a consistency No.1 or less mixed with molybdenum disulfide, added with silicone oil as base oil. CONSTITUTION:The grease which contains silicone oil as base oil has the most stable viscosity as the lubricant for bearing, and a limit exists in the viscosity of the lubricant which can flow into the minute gap in the radial direction of bearing as a dynamic-pressure bearing, and only the lubricant having the viscosity of consistency No.1 or less flows into the gap sufficiently. Further, the annular contact surface 71 of a shaft body 1 and the thrust bearing surface 41 of a thrust bearing member contact with high contact-surface pressure on stop or low-speed revolution of the bearing, and though the starting torque tends to become excessively large, the starting friction of the bearing can be markedly improved by mixing a small amount of molybdenum disulfide.
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Inventors:
TANAKA KATSUHIKO
SAKATANI IKUNORI
SAKATANI IKUNORI
Application Number:
JP16214685A
Publication Date:
March 15, 1986
Filing Date:
July 24, 1985
Export Citation:
Assignee:
NIPPON SEIKO KK
International Classes:
C10M169/04; F16C17/00; F16C33/00; F16C33/10; C10N10/12; C10N30/08; C10N40/02; C10N50/10; (IPC1-7): C10M107/50; C10M113/08; C10N30/08; C10N40/02; C10N50/10; F16C17/00; F16C33/10
Domestic Patent References:
| JPS5018839A | 1975-02-27 |
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