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ASTM F2215-08
Standard Specification for Balls, Bearings, Ferrous and Nonferrous for Use in Bearings, Valves, and Bearing Applications
35 стр.
Заменен
Электронный (pdf)Печатное издание
138.84 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
23.060.20 Ball and plug valves / Шаровые и пробковые клапаны
Сборник (ASTM):
01.09 Fasteners; Rolling Element Bearings / Крепежные изделия, Роликовые подшипники
Тематика:
Rolling Element Bearings
Описание
Реферат

This specification covers requirements for ferrous and nonferrous inch balls. The balls are intended for use in bearings, bearing applications, check valves, and other components using balls. These balls are classified into fourteen kinds according to their chemical composition: Composition 1 (chrome alloy steel), Composition 2 (corrosion-resistance hardened steel), Composition 3 (carbon steel), Composition 4 (silicon molybdenum steel), Composition 5 (brass), Composition 6 (bronze), Composition 7 (aluminum bronze), Composition 8 (beryllium copper alloy), Composition 9 (nickel-copper alloy or Monel), Composition 10 (nickel-copper-aluminum alloy or K-Monel), Composition 11 (aluminum alloy), Composition 12 (tungsten carbide), Composition 13 (premium quality bearing steel or double vacuum melted M-50), and Composition 14 (corrosion resisting unhardened steel). Ball samples shall be subjected to a series of tests in order to determine the following properties: density, hardness, fracture grain size, porosity, surface roughness, decarburization, case depth, and passivation. Eddy current test, visual test, and dimensional test shall also be performed.

Область применения

1.1 This specification covers requirements for ferrous and nonferrous inch balls. The balls covered in this specification are intended for use in bearings, bearing applications, check valves, and other components using balls.

1.2 This is a general specification. The individual item requirements shall be as specified herein in accordance with the Annex A2 through Annex A9 MS sheet standards. In the event of any conflict between requirements of this specification and the Annex A2 through Annex A9 MS sheet standards, the latter shall govern.

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4 This specification contains many of the requirements of MIL-B-1083, which was originally developed by the Department of Defense and maintained by the Defense Supply Center Richmond. The following government activity codes may be found in the Department of Defense, Standardization Directory SD-1.

Preparing ActivityCustodiansReview Activities
DLA-GSArmy-ATArmy-AV, EA, AR, MI
Navy-OSNavy-SH
Air Force-99Air Force- 11, 84

1.5 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 requirements prior to use.

Ключевые слова:
ball bearing; ball valve; bearing; bearing accessories; bearing rolling elements; Aircraft-quality steel balls; Aluminum bronze balls; Ball/roller bearings--specifications; Ball valve; Bearing materials--specifications; Beryllium copper balls; Brass balls; Bronze balls; Check valves; Corrosion-resistant steel--specifications; Ferrous inch balls; Nickel-copper alloy steel--specifications; Nonferrous inch balls; Silicon molybdenum steel balls; Tungsten carbide; UNS G51986 (Cr alloy steel); UNS C46400 (naval brass, uninhibited); UNS G10080 (carbon steel); UNS G10220 (carbon steel); UNS G52986 (Cr alloy steel); UNS S44003 (hardenable Cr stainless steel); UNS S44004 (hardenable Cr stainless steel); UNS T11350 (bearing steel)