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ASTM B438/B438M-04
Standard Specification for Sintered Bronze Bearings (Oil-Impregnated)
Automaticky preložený názov:
Štandardné špecifikácie pre zlepované bronz Ložiská ( Oil - Impregnované )
NORMA vydaná dňa 1.4.2004
Informácie o norme:
Označenie normy: ASTM B438/B438M-04
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.4.2004
Kód tovaru: NS-6692
Počet strán: 10
Približná hmotnosť: 30 g (0.07 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Anotácia textu normy ASTM B438/B438M-04 :
Keywords:
density, K strength constant, oil content, oil-impregnated bearings, porosity, ICS Number Code 21.100.01 (Bearings in general)
Doplňujúce informácie
| 1. Scope | ||||||||||
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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. |
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| 2. Referenced Documents | ||||||||||
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