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ASTM B438

Standard Specification for SINTERED BRONZE BEARINGS (OIL IMPREGNATED)

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Organization: ASTM
Publication Date: 25 March 1983
Status: inactive
Page Count: 8
ICS Code (Bearings in general): 21.100.01
scope:

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

This specification covers the following variables:

GradesĀ - Available in two grades, either plain bronze or leaded bronze. The two compositions are intended to be equivalent although the leaded bronze grade is normally specified for applications requiring a better shaft conforming material.

ClassĀ - Each grade is available in two classes, either no graphite or with graphite.

Type - Each grade and class is available in four types described by density ranges.

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

NOTE - A complete metric companion to Specification B 438 has been developed-B 438M; therefore, no metric equivalents are presented in this specification.

Document History

April 1, 2017
Standard Specification for Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated)
This specification covers porous metallic sleeve, flange, thrust and spherical bronze-base bearings that are produced from mixed metal powders utilizing powder metallurgy (PM) technology and then...
April 1, 2013
Standard Specification for Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated)
This specification covers porous metallic sleeve, flange, thrust and spherical bronze-base bearings that are produced from mixed metal powders utilizing powder metallurgy (PM) technology and then...
June 1, 2008
Standard Specification for Bronze-Base Powder Metallurgy (PM) Bearings (Oil-Impregnated)
This specification covers porous metallic sleeve, flange, thrust and spherical bronze-base bearings that are produced from mixed metal powders utilizing powder metallurgy (PM) technology and then...
November 1, 2005
Standard Specification for Bronze Powder Metallurgy (P/M) Bearings (Oil-Impregnated)
This specification covers sintered bronze, oil-impregnated bearings made primarily from elemental copper, tin, lead, and graphite powders. The manufacturer may, at his discretion, use prealloyed...
April 1, 2004
Standard Specification for Sintered Bronze Bearings (Oil-Impregnated)
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...
November 10, 2000
Standard Specification for Sintered Bronze Bearings (Oil-Impregnated)
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...
May 1, 2000
Standard Specification for Sintered Bronze Bearings (Oil-Impregnated)
1. 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...
September 10, 1995
Standard Specification for Sintered Bronze Bearings (Oil-Impregnated)
A description is not available for this item.
September 10, 1995
Standard Specification for Sintered Bronze Bearings (Oil-Impregnated)
1. 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...
ASTM B438
March 25, 1983
Standard Specification for SINTERED BRONZE BEARINGS (OIL IMPREGNATED)
This specification covers sintered bronze, oil-impregnated bearings made primarily from elemental copper, tin, lead, and graphite powders. The manufacturer may, at his discretion, use prealloyed...
March 25, 1983
STANDARD SPECIFICATION FOR SINTERED BRONZE BEARINGS (OIL- IMPREGNATED) (R 1989)
A description is not available for this item.
March 28, 1973
Standard Specification for Copper-Base Sintered Bearings (Oil-Impregnated)
A description is not available for this item.
November 1, 1967
Standard Specification for COPPER-BASE SINTERED METAL POWDER BEARINGS (OIL IMPREGNATED)
This specification covers copper-base sintered metal powder, oil impregnated, bearings of two compositions and three types depending on density. NOTE 1-The two compositions are intended to be...

References

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