FR2868940B1 - DENTIST HAND INSTRUMENT WITH BEARING HAVING CERAMIC COMPONENTS - Google Patents

DENTIST HAND INSTRUMENT WITH BEARING HAVING CERAMIC COMPONENTS

Info

Publication number
FR2868940B1
FR2868940B1 FR0550925A FR0550925A FR2868940B1 FR 2868940 B1 FR2868940 B1 FR 2868940B1 FR 0550925 A FR0550925 A FR 0550925A FR 0550925 A FR0550925 A FR 0550925A FR 2868940 B1 FR2868940 B1 FR 2868940B1
Authority
FR
France
Prior art keywords
bearing
ceramic components
hand instrument
dentist
dentist hand
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.)
Active
Application number
FR0550925A
Other languages
French (fr)
Other versions
FR2868940A1 (en
Inventor
Thomas Bierbaum
Rainer Worschischek
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.)
Sirona Dental Systems GmbH
Original Assignee
Sirona Dental Systems GmbH
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 Sirona Dental Systems GmbH filed Critical Sirona Dental Systems GmbH
Publication of FR2868940A1 publication Critical patent/FR2868940A1/en
Application granted granted Critical
Publication of FR2868940B1 publication Critical patent/FR2868940B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/08—Machine parts specially adapted for dentistry
    • A61C1/18—Flexible shafts; Clutches or the like; Bearings or lubricating arrangements; Drives or transmissions
    • A61C1/181—Bearings or lubricating arrangements, e.g. air-cushion 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
    • F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/3831—Ball cages with hybrid structure, i.e. with parts made of distinct materials
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/44—Selection of substances
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/44—Selection of substances
    • F16C33/445—Coatings
    • 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
    • F16C2206/00—Materials with ceramics, cermets, hard carbon or similar non-metallic hard materials as main constituents
    • F16C2206/40—Ceramics, e.g. carbides, nitrides, oxides, borides of a metal
    • 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
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/10—Application independent of particular apparatuses related to size
    • F16C2300/12—Small applications, e.g. miniature 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
    • F16C2316/00—Apparatus in health or amusement
    • F16C2316/10—Apparatus in health or amusement in medical appliances, e.g. in diagnosis, dentistry, instruments, prostheses, medical imaging appliances
    • F16C2316/13—Dental machines
FR0550925A 2004-04-16 2005-04-12 DENTIST HAND INSTRUMENT WITH BEARING HAVING CERAMIC COMPONENTS Active FR2868940B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004019236A DE102004019236B4 (en) 2004-04-16 2004-04-16 Dental hand instrument with a bearing having ceramic components

Publications (2)

Publication Number Publication Date
FR2868940A1 FR2868940A1 (en) 2005-10-21
FR2868940B1 true FR2868940B1 (en) 2006-10-13

Family

ID=35013352

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0550925A Active FR2868940B1 (en) 2004-04-16 2005-04-12 DENTIST HAND INSTRUMENT WITH BEARING HAVING CERAMIC COMPONENTS

Country Status (4)

Country Link
AT (1) AT500364B1 (en)
CH (1) CH697985B1 (en)
DE (1) DE102004019236B4 (en)
FR (1) FR2868940B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1881215A3 (en) * 2006-07-12 2008-01-30 JTEKT Corporation Cage of synthetic resin for a rolling element bearing with sliding surfaces formed by annular ceramic inserts

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE857458C (en) * 1941-01-09 1952-12-01 Ver Kugellagerfabriken Ag Cage for ring cylindrical roller bearings
US4966552A (en) * 1989-05-08 1990-10-30 Den-Tal-Ez, Inc. Sterilizable non-lubricated rotary instrument for dental and medical use
JP3030731B2 (en) * 1990-12-28 2000-04-10 光洋精工株式会社 Rolling element holding member and rolling bearing
DE19612571A1 (en) * 1996-03-29 1997-10-02 Fag Aircraft Gmbh Roller bearing without cage, for fast running medical instruments
US5752773A (en) * 1997-03-14 1998-05-19 The United States Of America As Represented By The Secretary Of The Air Force High temperature rolling element bearing
US6164831A (en) * 1998-04-03 2000-12-26 J. Morita Mfg. Corp. Rolling bearing for high-speed rotating equipment
DE19843951C2 (en) * 1998-05-26 2002-03-14 Kaltenbach & Voigt Drive system for dental handpieces
DE20023033U1 (en) * 2000-08-30 2002-11-28 Hegenscheidt Mfd Gmbh & Co Kg roller cage

Also Published As

Publication number Publication date
DE102004019236A1 (en) 2005-11-03
FR2868940A1 (en) 2005-10-21
DE102004019236B4 (en) 2012-02-02
CH697985B1 (en) 2009-04-15
AT500364B1 (en) 2011-05-15
AT500364A3 (en) 2011-01-15
AT500364A2 (en) 2005-12-15

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