JPS5739126A - Preparation of steel pipe for use to roller bearing - Google Patents
Preparation of steel pipe for use to roller bearingInfo
- Publication number
- JPS5739126A JPS5739126A JP11259280A JP11259280A JPS5739126A JP S5739126 A JPS5739126 A JP S5739126A JP 11259280 A JP11259280 A JP 11259280A JP 11259280 A JP11259280 A JP 11259280A JP S5739126 A JPS5739126 A JP S5739126A
- Authority
- JP
- Japan
- Prior art keywords
- steel pipe
- less
- preparation
- roller bearing
- ratio
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Landscapes
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE: To provide excellent rolling fatique strength, by processing steel containing each prescribed amount of C, Si, Mn, Cr, P, S, O, etc. and/or further a prescribed amount of Mo and having a prescribed ratio of S/O on a specific condition.
CONSTITUTION: Steel comprising 0.8W1.2% C, 0.05W1.5% Si, 0.2W2% Mn, 0.8W2% Cr, less than 0.03% P, 0.01W0.05% S, less than 0.0017% O, less than 0.01% N, less than 0.007% Ti and the remainder of Fe and/or further 0.05W0.3% Mo and having a ratio of S/O of 8 or more is hot rolled or hot extruded to provide a blank steel pipe. Subsequently, after softening of the steel pipe, it is once cold treated at a rolling reduction ratio of 50% or more to finish it to product dimensions.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11259280A JPS601932B2 (en) | 1980-08-15 | 1980-08-15 | Manufacturing method of rolling bearing steel pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11259280A JPS601932B2 (en) | 1980-08-15 | 1980-08-15 | Manufacturing method of rolling bearing steel pipe |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5739126A true JPS5739126A (en) | 1982-03-04 |
JPS601932B2 JPS601932B2 (en) | 1985-01-18 |
Family
ID=14590586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11259280A Expired JPS601932B2 (en) | 1980-08-15 | 1980-08-15 | Manufacturing method of rolling bearing steel pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS601932B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6150523U (en) * | 1984-09-03 | 1986-04-04 | ||
US4581079A (en) * | 1985-03-27 | 1986-04-08 | Amax Inc. | Bearing steel |
JP2018016889A (en) * | 2017-09-11 | 2018-02-01 | Ntn株式会社 | Rolling bearing |
US10208798B2 (en) | 2013-09-05 | 2019-02-19 | Ntn Corporation | Rolling device |
-
1980
- 1980-08-15 JP JP11259280A patent/JPS601932B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6150523U (en) * | 1984-09-03 | 1986-04-04 | ||
JPH0327375Y2 (en) * | 1984-09-03 | 1991-06-13 | ||
US4581079A (en) * | 1985-03-27 | 1986-04-08 | Amax Inc. | Bearing steel |
US10208798B2 (en) | 2013-09-05 | 2019-02-19 | Ntn Corporation | Rolling device |
JP2018016889A (en) * | 2017-09-11 | 2018-02-01 | Ntn株式会社 | Rolling bearing |
Also Published As
Publication number | Publication date |
---|---|
JPS601932B2 (en) | 1985-01-18 |
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