ASTM F2431

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 F 2246.

1.2.1 For needle roller bearings with thin outer rings (Specification F 2162, MS17131, MS52141) use inner rings specified in Specification F 2163.

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 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. Referenced Documents

ASTM Standards
E18 Test Methods for Rockwell Hardness and Rockwell Superficial 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 Standard
ASMEB46.1 Surface Texture (Surface Roughness, Waviness, and Lay)
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

Index Terms

nner ring; MS51961; MS51962; needle roller; radial bearing; ICS Number Code 21.100.20 (Rolling bearings)

Citing ASTM Standards

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