{"id":38491,"date":"2024-10-17T05:26:22","date_gmt":"2024-10-17T05:26:22","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-b438-2004\/"},"modified":"2024-10-24T15:13:56","modified_gmt":"2024-10-24T15:13:56","slug":"astm-b438-2004","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-b438-2004\/","title":{"rendered":"ASTM-B438 2004"},"content":{"rendered":"

ASTM B438\/B438M-04<\/h3>\n

Historical Standard: Standard Specification for Sintered Bronze Bearings (Oil-Impregnated)<\/h4>\n
\n

ASTM B438\/B438M<\/h4>\n

Scope<\/strong><\/p>\n

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.<\/p>\n

1.2 This specification covers the following variables:<\/p>\n

1.2.1 GradesAvailable in four bronze base composition grades identifiable by different graphite contents.<\/p>\n

1.2.2 TypeGrades 1 and 2 are available in four types described by specific density ranges.<\/p>\n

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.<\/p>\n

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.<\/p>\n

Keywords<\/strong><\/p>\n

density; K<\/i> strength constant; oil content; oil-impregnated bearings; porosity<\/p>\n

ICS Code<\/strong><\/p>\n

ICS Number Code 21.100.01 (Bearings in general)<\/p>\n

DOI:<\/strong> 10.1520\/B0438_B0438M-04<\/p>\n<\/div>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Referenced Documents
Ordering Information
Materials and Manufacture
Chemical Composition
Physical Properties
Mechanical Properties <\/td>\n<\/tr>\n
2<\/td>\nChemical Analysis
Dimensions and Tolerances
Workmanship, Finish, and Appearance
Sampling
Inspection
Rejection
Certification
TABLE 1
TABLE 2
TABLE 3
TABLE 4
TABLE 5 <\/td>\n<\/tr>\n
3<\/td>\nSupplementary Requirements
Related Specifications
Keywords <\/td>\n<\/tr>\n
4<\/td>\nX1. EXPLANATORY INFORMATION
X1.1 Design Information
X1.2 Permissible Loads
X1.3 Dimensional Tolerances
X1.4 Press Fits
TABLE X1.1
TABLE X1.2 <\/td>\n<\/tr>\n
5<\/td>\nX1.5 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 <\/td>\n<\/tr>\n
6<\/td>\nX2. MILITARY BEARING, SLEEVE, FLANGED, SINTERED BRONZE, OIL IMPREGNATED
X2.1 Requirements
X2.2 Notes
TABLE X1.5 <\/td>\n<\/tr>\n
7<\/td>\nTABLE X2.1 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

B438\/B438M-04 Standard Specification for Sintered Bronze Bearings (Oil-Impregnated)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2004<\/td>\n10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":38492,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[314,2637],"product_tag":[],"class_list":{"0":"post-38491","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-21-100-01","7":"product_cat-astm","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/38491","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/38492"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=38491"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=38491"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=38491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}