ASTM-B438 2004

$40.63

B438/B438M-04 Standard Specification for Sintered Bronze Bearings (Oil-Impregnated)

Published By	Publication Date	Number of Pages
ASTM	2004	10

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Categories: 21.100.01 - Bearings in general, ASTM

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Description

ASTM B438/B438M-04

Historical Standard: Standard Specification for Sintered Bronze Bearings (Oil-Impregnated)

ASTM B438/B438M

Scope

1.1 This specification covers sintered bronze, oil-impregnated bearings made primarily from elemental copper, tin, and graphite powders. The manufacturer may, at his discretion, use prealloyed bronze powder in the blend.

1.2 This specification covers the following variables:

1.2.1 GradesAvailable in four bronze base composition grades identifiable by different graphite contents.

1.2.2 TypeGrades 1 and 2 are available in four types described by specific density ranges.

1.3 Bearings ordered to this specification will normally be sized after sintering and will be impregnated with a lubricating oil unless otherwise specified by print.

1.4 The values stated in either inch-pound or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

Keywords

density; K strength constant; oil content; oil-impregnated bearings; porosity

ICS Code

ICS Number Code 21.100.01 (Bearings in general)

DOI: 10.1520/B0438_B0438M-04

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Ordering Information Materials and Manufacture Chemical Composition Physical Properties Mechanical Properties
2	Chemical Analysis Dimensions and Tolerances Workmanship, Finish, and Appearance Sampling Inspection Rejection Certification TABLE 1 TABLE 2 TABLE 3 TABLE 4 TABLE 5
3	Supplementary Requirements Related Specifications Keywords
4	X1. EXPLANATORY INFORMATION X1.1 Design Information X1.2 Permissible Loads X1.3 Dimensional Tolerances X1.4 Press Fits TABLE X1.1 TABLE X1.2
5	X1.5 Running Clearance X1.6 Flange and Thrust Bearing Specifications X1.7 Lubricating Oil-Impregnant FIG. X1.1 FIG. X1.2 FIG. X1.3 TABLE X1.3 TABLE X1.4
6	X2. MILITARY BEARING, SLEEVE, FLANGED, SINTERED BRONZE, OIL IMPREGNATED X2.1 Requirements X2.2 Notes TABLE X1.5
7	TABLE X2.1

Additional information

Standard Title	B438/B438M-04 Standard Specification for Sintered Bronze Bearings (Oil-Impregnated)
Published Code	ASTM
Publication Date	2004
Pages Count	10
ICS Codes	21.100.01 - Bearings in general