ASTM-B439 2008
$44.96
B439-08 Standard Specification for Iron-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated)
| Published By | Publication Date | Number of Pages |
| ASTM | 2008 | 13 |
1.1 This specification covers porous metallic sleeve, flange, thrust, and spherical iron-base bearings that are produced from mixed metal powder utilizing powder metallurgy (PM) technology and then impregnated with oil to supply operating lubrication.
1.2 Included are the specifications for the chemical, physical, and mechanical requirements of those ferrous PM materials that have been developed and standardized specifically for use in the manufacture of these self-lubricating bearings.
1.3 This specification accompanies Specification B 438/B 438M that covers the requirements for Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated).
1.4 Typical applications for iron-base bearings are discussed in Appendix X1.
1.5 Commercial bearing dimensional tolerance data are shown in Appendix X2, while engineering information regarding installation and operating parameters of PM bearings is included in Appendix X3. Additional useful information on self-lubricating bearings can be found in MPIF Standard 35 (Bearings) and the technical literature.
1.6 With the exception of density values for which the g/cm 3 unit is the industry standard, the values stated in inch-pound units are to be regarded as standard. The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.
1.7 The following safety hazards caveat pertains only to the test methods described in this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | Scope Referenced Documents |
| 2 | Terminology Classification Ordering Information Materials and Manufacture Chemical Composition Physical Properties Mechanical Properties |
| 3 | Dimensions, Mass, and Permissible Variations TABLE 1 FIG. 1 FIG. 2 FIG. 3 FIG. 4 |
| 4 | Workmanship, Finish and Appearance Sampling Test Methods |
| 6 | Inspection Rejection and Rehearing Certification and Test Report Packaging Keywords A1. PM MATERIAL DESIGNATION CODE A1.1 Introduction |
| 7 | A1.2 Prefix Material Letter Code A1.3 Four-Digit Chemical Composition Code A1.4 Minimum Strength Suffix Code A1.5 Data Source A2. CROSS INDEX OF BEARING MATERIALS A2.1 TABLE A1.1 FIG. A1.1 TABLE A1.2 |
| 8 | X1. IRON-BASE PM BEARINGS—APPLICATIONS X1.1 Introduction X1.2 Iron Material X1.3 Iron-Carbon Materials X1.4 Iron-Copper Materials X1.5 Iron-Copper-Carbon Materials X1.6 Iron-Bronze-Graphite Materials X1.7 Iron-Graphite Materials TABLE A2.1 |
| 9 | X2. IRON-BASE PM BEARINGS—COMMERCIAL TOLERANCES X2.1 Introduction X2.2 Sleeve Bearing Tolerances X2.3 Flange Bearing Tolerances X2.4 Thrust Washer Tolerances X2.5 Spherical Bearing Tolerances TABLE X2.1 |
| 10 | TABLE X2.2 TABLE X2.3 TABLE X2.4 |
| 11 | X3. IRON-BASE PM BEARINGS—ENGINEERING INFORMATION X3.1 Introduction X3.2 Compressive Yield Strength X3.3 Bearing Loading and Speeds TABLE X2.5 |
| 12 | X3.4 Pressure/Velocity (PV) Factor X3.5 Installation X3.6 Running Clearance X3.7 Bearing Life X3.8 Technical Support X4. PM BEARINGS—ADDITIONAL INFORMATION X4.1 MPIF Standard X4.2 Metric Bearings TABLE X3.1 TABLE X3.2 |
