{"id":117795,"date":"2024-10-19T03:44:15","date_gmt":"2024-10-19T03:44:15","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-b438-2005\/"},"modified":"2024-10-24T22:35:55","modified_gmt":"2024-10-24T22:35:55","slug":"astm-b438-2005","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-b438-2005\/","title":{"rendered":"ASTM-B438 2005"},"content":{"rendered":"

ASTM B438\/B438M-05<\/h3>\n

Historical Standard: Specification for Bronze Powder Metallurgy (P\/M) Bearing (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, lead, and graphite powders. The manufacturer may, at his discretion, use prealloyed bronze powder in the mixed powder.<\/p>\n

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

1.2.1 GradesAvailable in three bronze base compositions identifiable by different graphite contents and one leaded bronze grade.<\/p>\n

1.2.2 TypeGrades 1 and 2 are available in four types described by specific density ranges. Grade 3 is available in two types and Grade 4 is available in one type.<\/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 the print.<\/p>\n

1.4 The values stated in either inch-pound or SI units are to be regarded separately as standard. 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 this specification.<\/p>\n

1.5 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.<\/p>\n

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

bearing breaking load; density; K<\/i>, radial crushing strength, porous metallic bearings, strength constant; oil content; oil-impregnated bearings; P\/M 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-05<\/p>\n<\/div>\n

PDF Catalog<\/h4>\n\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 <\/td>\n<\/tr>\n
2<\/td>\nChemical Composition
Physical Properties
Mechanical Properties
TABLE 1
TABLE 2
TABLE 3
TABLE 4
TABLE 5 <\/td>\n<\/tr>\n
3<\/td>\nChemical Analysis
Dimensions and Tolerances
Workmanship, Finish, and Appearance
Sampling
Inspection
Rejection
Certification
Supplementary Requirements <\/td>\n<\/tr>\n
4<\/td>\nKeywords
X1. EXPLANATORY INFORMATION
X1.1 Design Information
X1.2 Permissible Loads
X1.3 Dimensional Tolerances
TABLE X1.1 <\/td>\n<\/tr>\n
5<\/td>\nX1.4 Press Fits
X1.5 Running Clearance
TABLE X1.2
FIG. X1.1
FIG. X1.2
FIG. X1.3
TABLE X1.3 <\/td>\n<\/tr>\n
6<\/td>\nX1.6 Flange and Thrust Bearing Specifications
X1.7 Lubricating Oil-Impregnant
TABLE X1.4
TABLE X1.5 <\/td>\n<\/tr>\n
7<\/td>\nX2. MILITARY BEARING, SLEEVE, FLANGED, SINTERED BRONZE, OIL IMPREGNATED
X2.1 Requirements
X2.2 Notes
TABLE X2.1 <\/td>\n<\/tr>\n
10<\/td>\nX3. RELATED MATERIALS
X3.1 MPIF Standard
X3.2 ISO Standards <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

B438\/B438M-05 Specification for Bronze Powder Metallurgy (P\/M) Bearing (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>\n2005<\/td>\n10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":117796,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[314,2637],"product_tag":[],"class_list":{"0":"post-117795","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\/117795","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\/117796"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=117795"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=117795"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=117795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}