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GB/T 18325.2-2009: Plain bearing -- Bearing fatigue -- Part 2: Test with a cylindrical specimen of a metallic bearing material
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 18325.2-2009 | English | 189 |
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Plain bearing -- Bearing fatigue -- Part 2: Test with a cylindrical specimen of a metallic bearing material
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GB/T 18325.2-2009
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Basic data | Standard ID | GB/T 18325.2-2009 (GB/T18325.2-2009) | | Description (Translated English) | Plain bearing -- Bearing fatigue -- Part 2: Test with a cylindrical specimen of a metallic bearing material | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J12 | | Classification of International Standard | 21.100.10 | | Word Count Estimation | 8,867 | | Date of Issue | 2009-05-26 | | Date of Implementation | 2009-12-01 | | Quoted Standard | GB/T 1031-2009 | | Adopted Standard | ISO 7905-2-1995, MOD | | Regulation (derived from) | PRC National Standard Approval Announcement 2009 No.7 (Total No.147) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the individual to determine the bearing material (not attached to the steel back) of the fatigue limit of the method. | GB/T 18325.2-2009: Plain bearing -- Bearing fatigue -- Part 2: Test with a cylindrical specimen of a metallic bearing material
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Plain bearing Bearing fatigue Part 2. Test with a cylindrical specimen of a metallic bearing material
ICS 21.100.10
J12
National Standards of People's Republic of China
Sliding Bearing fatigue
Part 2. Test specimens cylindrical metal bearing material
(ISO 7905-2.1995, MOD)
Posted 2009-05-26
2009-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 18325 "sliding bearings fatigue" consists of the following four components.
--- Part 1. hydrodynamic lubrication conditions in the test machine and plain bearings fatigue practical application;
--- Part 2. a cylindrical metal bearing material test specimens;
--- Part 3. metallic multilayer bearing material flat belt test;
--- Part 4. metallic multilayer bearing material pad test.
This section GB/T 18325 Part 2.
The partial modification using ISO 7905-2.1995 "Sliding Bearing fatigue - Part 2. a cylindrical metal bearing material test specimens
Inspection ", this section and ISO 7905-2.1995 main differences are as follows.
--- The ISO 468 international standards in normative references obsolete. GB 1992 to contain its reference content/T 1031-2009.
This part is proposed by China Machinery Industry Federation.
Bearing this in part by the National Standardization Technical Committee (SAC/TC236) centralized.
This section is responsible for drafting unit. Productivity Promotion Center in the machine.
Participated in the drafting of this section. Changzhou Hengye Bearing Materials Co., Ltd.
This part of the National Standardization Technical Committee Secretariat slide bearing responsible for the interpretation.
This section first release.
Sliding Bearing fatigue
Part 2. Test specimens cylindrical metal bearing material
1 Scope
GB/T 18325 provisions of this section to determine the individual bearing material (not attached to the steel back) the fatigue limit of the method.
2 Normative references
The following documents contain provisions which, through reference GB/T 18325 in this section constitute provisions of this section. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this
section.
GB/T 1031-2009 Geometrical product specifications surface contour method (GPS) Surface texture roughness parameters and their values
3 Sample
The sample size should be consistent with FIG. 1 of a cylindrical shape.
Millimeters
Figure 1 Sample Size and Shape
Bearing materials and surface roughness of the specimen shall be representative of the manufacturing process used when bearing production. Before and during the trial should be avoided
Exemption sample surface mechanical damage or corrosion. The surface roughness R z should be less than 6μm (according to GB/T 1031-2009). This test side
The disadvantage is that the law bearing samples along with the lack of manufacturing processes can produce residual stress and microstructure may be pressurized and the bearing steel back
A thin layer on the microstructure are very different.
Test Method 4
Stress cycles limit is 5 × 107 times. Finite life fatigue strength should be 107 units of stress cycles is recorded.
Test frequency should be between 50Hz ~ 80Hz. In order to shorten the test time and improve the statistical estimation of fatigue life, you can use a few test
Taiwan tested simultaneously.
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