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1. (WO1989000090) BEARING ARRANGEMENT FOR THE WORKING SPINDLE OF A MACHINE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1989/000090 International Application No.: PCT/EP1988/000613
Publication Date: 12.01.1989 International Filing Date: 08.07.1988
IPC:
B23Q 1/26 (2006.01) ,B23Q 1/70 (2006.01) ,F16C 35/06 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
Q
DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL, CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
1
Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
25
Movable or adjustable work or tool supports
26
characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
Q
DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL, CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
1
Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
70
Stationary or movable members for carrying working-spindles for attachment of tools or work
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
35
Rigid support of bearing units; Housings, e.g. caps, covers
04
in the case of ball or roller bearings
06
Mounting of ball or roller bearings; Fixing them onto shaft or in housing
Applicants:
BOEHRINGER WERKZEUGMASCHINEN GMBH [DE/DE]; Stuttgarter Str. 50 Postfach 220 D-7320 Göppingen, DE (JP)
KUHN, Siegfried [DE/DE]; DE (UsOnly)
PHILIPP, Bernhard [DE/DE]; DE (UsOnly)
SCHULTEN, Hermann [DE/DE]; DE (UsOnly)
Inventors:
KUHN, Siegfried; DE
PHILIPP, Bernhard; DE
SCHULTEN, Hermann; DE
Agent:
VOGESER, Werner @; Hansmann & Vogeser Albert-Roßhaupter-Str. 65 D-8000 München 70, DE
Priority Data:
P 37 22 572.308.07.1987DE
Title (EN) BEARING ARRANGEMENT FOR THE WORKING SPINDLE OF A MACHINE
(FR) AGENCEMENT DE SUPPORT DE LA BROCHE DE TRAVAIL D'UNE MACHINE-OUTIL
Abstract:
(EN) A bearing arrangement for the working spindle of a machine-tool, e.g. a lathe, comprises angular contact ball bearings in tandem-O-arrangement with an inner, a middle, and an outer ball bearing. To ensure that the effective leverage of this type of bearing arrangement is as short as possible and that its length is defined as far as possible and remains approximately constant under load, the diameter of the spindle is greater in the region of the outer bearing than in the region of the other bearings.
(FR) Un agencement de support de la broche de travail d'une machine-outil, par exemple un tour, comprend des roulements à billes à contact oblique montés en tandem-O avec un roulement à billes interne, un roulement à billes intermédiaire et un roulement à billes externe. Afin que la longueur du bras en porte à faux d'un tel agencement de support soit aussi réduite et aussi définie que possible, et reste constante même sous contrainte, la broche présente dans la région du roulement externe un diamètre plus grand que dans la région des autres roulements.
Designated States: JP, US
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
EP0298509US4924524