EP 2300719 A1 20110330 - SHAFT ARRANGEMENT FOR FAST-ROTATING SHAFTS
Title (en)
SHAFT ARRANGEMENT FOR FAST-ROTATING SHAFTS
Title (de)
WELLENANORDNUNG FÜR SCHNELLDREHENDE WELLEN
Title (fr)
SYSTÈME D ARBRE POUR ARBRES À ROTATION RAPIDE
Publication
Application
Priority
- EP 2009057343 W 20090615
- DE 102008030583 A 20080627
Abstract (en)
[origin: WO2009156286A1] A shaft arrangement for fast-rotating shafts, such as are used as rotor shafts for turbomolecular pumps in particular, comprises two separate shaft journals (10) that are connected together. A roller bearing (12) is disposed at each of the two shaft journals (10). By separating the shaft into at least two parts, or two shaft journals, it is possible to provide running surfaces (22) for rolling elements (18) of the roller bearings (12) directly on a surface (20) of the shaft journals.
IPC 8 full level
F04D 19/04 (2006.01); F04D 29/054 (2006.01); F04D 29/059 (2006.01)
CPC (source: EP)
F04D 19/04 (2013.01); F04D 29/054 (2013.01); F04D 29/059 (2013.01); F16C 3/02 (2013.01); F16C 19/54 (2013.01); F05B 2240/54 (2013.01); F05B 2240/61 (2013.01); F16C 2360/45 (2013.01)
Citation (search report)
See references of WO 2009156286A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
DE 102008030583 A1 20091231; CN 102066762 A 20110518; EP 2300719 A1 20110330; JP 2011525589 A 20110922; WO 2009156286 A1 20091230
DOCDB simple family (application)
DE 102008030583 A 20080627; CN 200980122314 A 20090615; EP 09769135 A 20090615; EP 2009057343 W 20090615; JP 2011515302 A 20090615