Design and Stress Analysis of Extraterrestrial ... - The Black Vault

ing groove, and through the inclined opening in
the circular channel on the inner side of the bearing.
the bearing toward
Fig. 3.7. The typical pressure fP
distribution in the lubricant
film of a hydrddynamic bearing
durivig, shaft rotation.
KEY: kl) Surplus pressure in
the lubricant film,
S~(i)
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* From the channel the lubricant enters the working clearance between
* the center shaft and the bearing. Such a bearing can work at a
temperature up to approximately 9000C. With a reduction in temperature
the viscosity of the wdrking liquid and the bearing capacity increase.
Less known yet is the so-called hydrostatic bearing.
External
load in such a bearing at any speed (even at n = 0) is balanced
basically by the hydrostatic pressure in the carrying layer of the
liquid, ensured by the external (relative to the bearing) source of
pressure -
- can be used.
a pump.
In hydrostatic bearings any liquids, including liquid metal,
The external load in the normal operation of a hydrostatic
bearing is absorbed by a continuous layer of liquid, which eliminates
the possibility of dry contact.
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