JPS5770262A - Wear resistant sintered oilless bearing - Google Patents

Wear resistant sintered oilless bearing

Info

Publication number
JPS5770262A
JPS5770262A JP14593680A JP14593680A JPS5770262A JP S5770262 A JPS5770262 A JP S5770262A JP 14593680 A JP14593680 A JP 14593680A JP 14593680 A JP14593680 A JP 14593680A JP S5770262 A JPS5770262 A JP S5770262A
Authority
JP
Japan
Prior art keywords
oilless bearing
sintered
base
subjected
shaft
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.)
Pending
Application number
JP14593680A
Other languages
Japanese (ja)
Inventor
Kazumasa Matsuno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tsubakimoto Chain Co
Original Assignee
Tsubakimoto Chain Co
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 Tsubakimoto Chain Co filed Critical Tsubakimoto Chain Co
Priority to JP14593680A priority Critical patent/JPS5770262A/en
Publication of JPS5770262A publication Critical patent/JPS5770262A/en
Pending legal-status Critical Current

Links

Landscapes

  • Sliding-Contact Bearings (AREA)
  • Powder Metallurgy (AREA)

Abstract

PURPOSE: To obtain a sintered oilless bearing improved in wear resistance the resistance to impact, etc., by dispersing one of oxides or nitrides of Al, Zr, Ti into a low-temperature-annealed martensite base.
CONSTITUTION: The sintered oilless bearing comprises a low-temperature-annealed martensite base that includes 1.0W6.0wt% of Ni, 0.3W2.0wt% Mn, 0.5W2.0wt% of Cu, 0.5W2.0wt% of Cr, 0.4W0.8wt% of C, 0.5W4.0wt% of one of Al2O3, ZrO2TiO3, AlN, ZrN or TiN, and balance of Fe, the metal structure is strengthened by the dispersion of Al2O3 or the like, and its hardness HRA is 50 or above, and its sinter density is in the range from 6.0W6.6g/cm2. A powder mixture of simple metals for example with Al2O3 that will have the composition mentioned above, or a powder that has been prepared by partly or completely alloying said powder mixture is molded, sintered and hardened, and immediately thereafter it is subjected to subzero treatment. Thus a matensitic uniform structure is obtained. Then it is subjected to cold tempering to remove the internal strains and to improve the wear resistance and toughness. Al2O3 exhibits hardness most in the base, and acts to support a shaft however if the content is below the minimum, it does not show the effect, and if the content is above the maximum limit, its strength is reduced, and the wear of a shaft will be accelerated.
COPYRIGHT: (C)1982,JPO&Japio
JP14593680A 1980-10-18 1980-10-18 Wear resistant sintered oilless bearing Pending JPS5770262A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14593680A JPS5770262A (en) 1980-10-18 1980-10-18 Wear resistant sintered oilless bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14593680A JPS5770262A (en) 1980-10-18 1980-10-18 Wear resistant sintered oilless bearing

Publications (1)

Publication Number Publication Date
JPS5770262A true JPS5770262A (en) 1982-04-30

Family

ID=15396488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14593680A Pending JPS5770262A (en) 1980-10-18 1980-10-18 Wear resistant sintered oilless bearing

Country Status (1)

Country Link
JP (1) JPS5770262A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60215748A (en) * 1984-04-07 1985-10-29 Riken Corp Wear-resistant sintered alloy
JPS6119766A (en) * 1984-07-06 1986-01-28 Riken Corp Abrasion resistant sintered alloy
JPH03183744A (en) * 1989-12-11 1991-08-09 Komatsu Ltd Ferrous sintered sliding material
US6733723B2 (en) * 2002-01-22 2004-05-11 Samsung Electronics Co., Ltd. Method for producing sintered metal and a rotary compressor flange produced by use of the method
US7594332B2 (en) 2004-06-04 2009-09-29 Tsubakimoto Chain Co. Method and apparatus for making a cylindrical bearing member

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60215748A (en) * 1984-04-07 1985-10-29 Riken Corp Wear-resistant sintered alloy
JPH046784B2 (en) * 1984-04-07 1992-02-06 Riken Kk
JPS6119766A (en) * 1984-07-06 1986-01-28 Riken Corp Abrasion resistant sintered alloy
JPH046785B2 (en) * 1984-07-06 1992-02-06 Riken Kk
JPH03183744A (en) * 1989-12-11 1991-08-09 Komatsu Ltd Ferrous sintered sliding material
US6733723B2 (en) * 2002-01-22 2004-05-11 Samsung Electronics Co., Ltd. Method for producing sintered metal and a rotary compressor flange produced by use of the method
US7594332B2 (en) 2004-06-04 2009-09-29 Tsubakimoto Chain Co. Method and apparatus for making a cylindrical bearing member

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