Abstract
This specification covers inner rings for needle roller bearings having thick outer rings. The inner rings being specified are intended for use on unhardened shafts. Inner rings designed to this specification are intended for use in applications requiring high radial load with minimal angular shaft misalignment. Heat treatment and protective coating of the material shall meet the specified requirements.
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. Scope
1.1 This specification covers inner rings for needle roller bearings having thick outer rings.
1.2 The inner rings being specified are intended for use on unhardened shafts in conjunction with the MS51961 needle roller bearings specified in Specification F2246.
1.2.1 For needle roller bearings with thin outer rings (Specification F2162, MS17131, MS52141) use inner rings specified in Specification F2163.
1.3 Inner rings designed to this specification are intended for use in applications requiring high radial load with minimal angular shaft misalignment.
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.
1.5 This specification contains many of the requirements of MS51962, which was originally developed by the Department of Defense and maintained by the Defense Supply Center in Richmond. The following government activity codes may be found in the Department of Defense, Standardization Directory SD-1.
| Preparing activity | Custodians | Review Activity |
| DLA–GS4 | Army –AT | Air Force–84 |
| | Navy–OS | |
| | Air Force–-99 | |
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
E18 Test Methods for Rockwell Hardness of Metallic Materials
F2162 Specification for Bearing, Roller, Needle: Drawn Outer Ring, Full Complement, Without Inner Ring, Open and Closed End, Standard Type
F2163 Specification for Ring, Bearing, Inner: for Needle Roller Bearing With Drawn Outer Ring
F2246 Specification for Bearing, Roller, Needle: Thick Outer Ring With Rollers and Cage
SAE Standards
SAEAMSSTD66 Steel: Chemical Composition and Hardenability
Military Standard.
MIL-STD-197 Packaging of Bearings, Associated Parts and Subassemblies
ABMA Standards
ABMA18.2 Needle Roller Bearings Radial, Inch Design
ISO Standard
ISO5593 Rolling Bearings--Vocabulary
Keywords
inner ring; MS51961; MS51962; needle roller; radial bearing;
ICS Code
ICS Number Code 21.100.20 (Rolling bearings)
DOI: 10.1520/F2431-04R12
ASTM International is a member of CrossRef.
Citing ASTM Standards
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