EP 2295621 B1 20111102 - Friction motor spindle
Title (en)
Friction motor spindle
Title (de)
Friktions-Motorspindel
Title (fr)
Broche à friction motorisée
Publication
Application
Priority
DE 102009040864 A 20090909
Abstract (en)
[origin: EP2295621A1] The spindle (3) has a bearing unit (4) comprising two roller bearings (5) e.g. ball bearings, which are axially placed at a distance from one another. An electric motor (2) is provided for directly driving the spindle without a bearing. A gear element (7) e.g. crown gear, is connected with the spindle in a twist-proof manner and forms a part of a belt drive. The electric motor is placed immediately near the bearing unit and formed as a synchronous motor, asynchronous motor, permanent magnet excited motor, electronically commutated direct current (DC) motor or reluctance motor.
IPC 8 full level
CPC (source: EP)
D02G 1/06 (2013.01); D02G 1/082 (2013.01)
Designated contracting state (EPC)
AL 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 SM TR
DOCDB simple family (publication)
EP 2295621 A1 20110316; EP 2295621 B1 20111102; AT E531840 T1 20111115; CN 102021700 A 20110420; CN 102021700 B 20141119; DE 102009040864 A1 20110310
DOCDB simple family (application)
EP 10171587 A 20100802; AT 10171587 T 20100802; CN 201010282296 A 20100909; DE 102009040864 A 20090909