IN2013CN00585AIN585CHN2013AIN2013CN00585AIN 2013CN00585 AIN2013CN00585 AIN 2013CN00585AIN 585CHN2013 AIN585CHN2013 AIN 585CHN2013AIN 2013CN00585 AIN2013CN00585 AIN 2013CN00585A
Authority
IN
India
Prior art keywords
gear structure
periphery
machining
rolling
gear
Prior art date
Application number
Inventor
Patrik Dahlman
Baozhu Liang
Original Assignee
Skf Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Skf AbfiledCriticalSkf Ab
Priority claimed from PCT/SE2011/000097external-prioritypatent/WO2012002866A1/en
Publication of IN2013CN00585ApublicationCriticalpatent/IN2013CN00585A/en
A welded hollow gear ring (160 260 360 460 560) with an outer (140 240 340) and an inner (155 255 355) periphery which exhibits a gear structure (131 138 231 238 331 338 331 338 ) on at least one periphery as well as exhibiting at least one welding joint (151 251 351 451 551) which has been formed by flash butt welding. The gear structure is formed by rolling machining or by a combination of machining and rolling. The gear structure can comprise cogs or helical gears.