GB1310274A - Silicon nitride gas bearings - Google Patents

Silicon nitride gas bearings

Info

Publication number
GB1310274A
GB1310274A GB1310274DA GB1310274A GB 1310274 A GB1310274 A GB 1310274A GB 1310274D A GB1310274D A GB 1310274DA GB 1310274 A GB1310274 A GB 1310274A
Authority
GB
United Kingdom
Prior art keywords
shaft
silicon nitride
bearing
housing
segments
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK
Publication of GB1310274A publication Critical patent/GB1310274A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0662—Details of hydrostatic bearings independent of fluid supply or direction of load
    • F16C32/0666—Details of hydrostatic bearings independent of fluid supply or direction of load of bearing pads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/03—Sliding-contact bearings for exclusively rotary movement for radial load only with tiltably-supported segments, e.g. Michell bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/043—Sliding surface consisting mainly of ceramics, cermets or hard carbon, e.g. diamond like carbon [DLC]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

1310274 Silicon nitride bearings NATIONAL RESEARCH DEVELOPMENT CORP 1 Sept 1971 [2 Sept 1970 30 April 1971] 42081/70 and 12392/71 Heading F2A A bearing for a shaft 1 has a bearing surface formed of silicon nitride, and consists of a sleeve 2 of silicon nitride material which surrounds the shaft and which is divided into a plurality of segments, the segments being disposed in a housing 3 against which they are held by circlips 5 provided in the inner surface of the sleeve. The housing is closed by an end cap 6. Gas is fed under pressure into the bearing via passages 7 in the shaft. In a modification there may be provided at each end of the sleeve annular ceramic end seals which may be in the form of segments held in place by lugs in the shaft. The bearing surface may be shaped so as to facilitate generation of an hydrodynamic gas film, or fluid passages may be formed in the shaft or housing in order to provide pressurized bearing fluid.
GB1310274D 1970-09-02 1970-09-02 Silicon nitride gas bearings Expired GB1310274A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4208170 1970-09-02

Publications (1)

Publication Number Publication Date
GB1310274A true GB1310274A (en) 1973-03-14

Family

ID=10422763

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1310274D Expired GB1310274A (en) 1970-09-02 1970-09-02 Silicon nitride gas bearings

Country Status (1)

Country Link
GB (1) GB1310274A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2339594A (en) * 1998-07-14 2000-02-02 Toyoda Automatic Loom Works Lubricated rotary pin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2339594A (en) * 1998-07-14 2000-02-02 Toyoda Automatic Loom Works Lubricated rotary pin
GB2339594B (en) * 1998-07-14 2001-03-14 Toyoda Automatic Loom Works Rotary pin

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee