(19)

(11)

EP 2 198 061 A1

(12)

(43) Date of publication: 23.06.2010 Bulletin 2010/25 (21) Application number: 08835034.3 (22) Date of filing: 03.10.2008

(51) International Patent Classification (IPC):  C21D 1/10(2006.01) C21D 9/36(2006.01) C21D 1/78(2006.01) (86) International application number: PCT/SE2008/000544 (87) International publication number: WO 2009/045146 (09.04.2009 Gazette 2009/15)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 04.10.2007 GB 0719457 (71) Applicant: Aktiebolaget SKF 415 50 Göteborg (SE)	(72) Inventors: STRANDELL, Ingemar S-43370 Sävedalen (SE) NEUMAN, Peter S-413 10 Göteborg (SE) SUNDQVIST, Mikael, B. S-416 71 Göteborg (SE) LANE, Steven NL-3994 Houten (NL)