ROTATIONAL TRANSMISSION DEVICE - NTN TOYO BEARING CO LTD

Title:

ROTATIONAL TRANSMISSION DEVICE

Document Type and Number:

WIPO Patent Application WO/2015/147188

Kind Code:

A1

Abstract:

An electromagnetic clutch (50) comprises an armature (51), a rotor (52) having an outer cylindrical portion (52a) and an inner cylindrical portion (52b), and an electromagnet (53), a bearing support cylinder (57) being provided on the outer end surface of a core (53b) that supports an electromagnetic coil (53a) of the electromagnet (53), a bearing (58) being incorporated into the inside of the bearing support cylinder (57) and being positioned and retained in the axis direction thereof. A small diameter cylindrical portion (52c) provided on an end of the inner cylindrical portion (52b) of the rotor (52) is press-fitted into the bearing (58) such that the rotor (52) and the electromagnet (53) form one unit, thereby improving ease of assembly of the electromagnetic clutch (50) and improving ease of management of the amount of overlap between the outer cylindrical portion (52a) of the rotor (52) and the core (53b) of the electromagnet (53).

Inventors:

KITAYAMA NAOTSUGU (JP)
ISHIKAWA SHINTARO (JP)
SATO KOJI (JP)
SAITO TAKAHIDE (JP)

Application Number:

PCT/JP2015/059431

Publication Date:

October 01, 2015

Filing Date:

March 26, 2015

Export Citation:

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Assignee:

NTN TOYO BEARING CO LTD (JP)

International Classes:

F16D27/10; F16D41/08

Foreign References:

JP2013174345A	2013-09-05
JP2004183892A	2004-07-02
JP2003106346A	2003-04-09
JP2008008447A	2008-01-17
JP2004060809A	2004-02-26
JP2010065813A	2010-03-25
JP2005155834A	2005-06-16
JP2014025483A	2014-02-06

Other References: