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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.
1.2 The inner rings being specified are intended for use on unhardened shafts in conjunction with the MS51961 needle roller bearings specified in Specification F2246.
1.4 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-1.2
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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
ANSI StandardASMEB46.1 Surface Texture (Surface Roughness, Waviness, and Lay)
SAE StandardsSAEAMSSTD66 Steel: Chemical Composition and Hardenability
Military Standard.MIL-STD-197 Packaging of Bearings, Associated Parts and Subassemblies
ABMA StandardsABMA18.2 Needle Roller Bearings Radial, Inch Design
ISO StandardISO5593 Rolling Bearings--Vocabulary
ICS Number Code 21.100.20 (Rolling bearings)
UNSPSC Code 31171505(Roller bearings)