Title:
【発明の名称】鋼製転がり軸受輪を製造するための方法
Document Type and Number:
Japanese Patent JP2002503788
Kind Code:
A
Abstract:
A method for producing steel rolling bearing rings, starting from a hot-rolled tube, the structure of which is similar to a spheroidized structure and from which rings of the same continuous length are hot-cut while supplying a lubricant and, after cooling, are further processed. The hot-cutting takes place at a temperature below the transformation temperature of the rolling bearing steel used but above 720° C., with subsequent cooling in static air. From the blank ring a green or soft ring of a rolling bearing ring is produced with narrow tolerances of its shaped elements by an optimally timed multistage machining type of cold further processing operation, the main element of the cold further processing being a turning operation.
Inventors:
Ten black, curl
Forster, Wilfried
Stephan, Roland
Sommerfeld, Herbert
Forster, Wilfried
Stephan, Roland
Sommerfeld, Herbert
Application Number:
JP2000507072A
Publication Date:
February 05, 2002
Filing Date:
July 01, 1998
Export Citation:
Assignee:
Mannesmann Actien Gezelshaft
International Classes:
B21D53/00; B23P13/04; B23P15/00; B23P13/00; C21D9/40; F16C33/64; (IPC1-7): F16C33/64; C21D9/40
Attorney, Agent or Firm:
Okuyama Shoichi (2 outside)