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This specification covers the requirements for standard-type needle roller bearings with drawn outer rings, full complement, without inner rings, and with either open (Type B) or closed ends (Type M). Materials covered by this specification are needle rollers which shall be manufactured from steel, alloy, or carbon, and shall be of Grade E50100 or E52100. Rings, on the other hand, shall be manufactured from steel, alloy, or carbon, with carburizing grade 4620, 4720, 8620, 8720, or 1010-1020. Needle rollers and rings shall be hardened by heat treatment, and bearings shall be coated with rust preventive film.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers standard-type needle roller bearings having drawn outer rings, full complement, without inner rings, with either open or closed ends.
1.2 The use of recycled materials that meet the requirements of the applicable material specification without jeopardizing the intended use of the item is encouraged.
1.3 The inner rings specified in this specification are not intended for use in flight critical systems of aircraft.
1.4 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.
Note 1—This specification contains many of the requirements of MS17131, which was originally developed by the Department of Defense and is currently maintained by the Defense Supply Center Richmond.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASME StandardASMEB46.1 Surface Texture Surface Roughness, Waviness, and Lay Available from Global Engineering Documents, 15 Inverness Way, East Englewood, CO 80112-5704, http://www.global.ihs.com.
SAE StandardSAEJ-404 Chemical Composition of SAE Alloy Steels Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.
Military StandardMIL-STD-130 Identification Marking of US Military Property Available from USA Information Systems, 1092 Laskin Rd., Ste. 208, Virginia Beach, VA 23451.
American Bearing Manufacturers Association (ABMA) StandardSTD4 Tolerance Definitions and Gauging Practices For Ball and Roller Bearings Available from the American Bearing Manufacturers Association, 1200 19th St. NW, Ste. 300, Washington, DC 20036-2401.
ISO StandardsISO1132 Rolling Bearings--Tolerances--Definitions
E18 Test Methods for Rockwell Hardness of Metallic Materials
E140 Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, and Scleroscope Hardness
E384 Test Method for Knoop and Vickers Hardness of Materials
F2163 Specification for Ring, Bearing, Inner: for Needle Roller Bearing With Drawn Outer Ring
ICS Number Code 21.100.20 (Rolling bearings)
UNSPSC Code 31171505(Roller bearings); 31171512(Needle bearings)