IP Library Granted Patent US 7,950,857
Granted Patent B2
US 7,950,857 · App. 12/095,355 · Granted May 31, 2011

Rolling bearing with heating element

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Quick Facts
Patent No.
US 7,950,857
App. No.
12/095,355
Granted
May 31, 2011
Kind
B2
Abstract

A rolling bearing which has at least one heated rolling bearing ring. An electrical heating element is applied with good thermally-conductive contact to a surface section of the heated rolling bearing ring. The heat quantity which can be generated by the heating element is dimensioned such that the heated rolling bearing ring undergoes thermal expansion when heated, which permits the rolling bearing to be mounted on a frame element with the formation of a shrink fit during subsequent cooling.

Claims (8)

1. A rolling bearing comprising:

at least one heated rolling bearing ring, and an electrical heating clement applied, in good heat-conducting contact, to a surface section of the heated rolling bearing ring, with a heat quantity which can be generated by the heating element being such that the heated rolling bearing ring undergoes thermal expansion during heating, which permits an assembly of the heated rolling bearing onto a frame element with a formation of a shrink fit during the subsequent cooling,

wherein the heating element is a thick-film heating resistor which is situated on the heated rolling bearing ring, and

wherein a temperature sensor and/or a thermostat is integrated into the heating element.

2. The rolling bearing as claimed in claim 1 , wherein the heating element is applied to end sides of the heated rolling hearing ring.

3. The rolling bearing as claimed in claim 1 , wherein the heating element can also be supplied with electrical energy after being assembled on the frame, in order to be able to set a desired bearing temperature.

4. The rolling bearing as claimed in claim 1 , wherein a temperature control unit is integrated into the heating element, which temperature control unit interacts with the heating element in order to provide temperature control and/or temperature regulation.

5. The rolling bearing as claimed in claim 4 , wherein a fuse element breaks an energy supply to the heating element if a predefined limit temperature is exceeded and/or a thermostat activates or deactivates the energy supply to the heating element if a predefinable limit temperature is exceeded and/or undershot.

Assignments (5)
CORRECTIVE ASSIGNMENT TO CORRECT THE PROPERTY NUMBERS PREVIOUSLY RECORDED ON REEL 037732 FRAME 0347. ASSIGNOR(S) HEREBY CONFIRMS THE APP. NO. 14/553248 SHOULD BE APP. NO. 14/553258. Recorded Oct 11, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 040404/0530 →
MERGER AND CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES AG & CO. KG; SCHAEFFLER VERWALTUNGS 5 GMBH
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 037732/0228 →
CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 037732/0347 →
CHANGE OF NAME Recorded Jul 11, 2012
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 028533/0036 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 10, 2012
From: SCHAEFFLER KG
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 028523/0790 →