3110-12-164-4567 BEARING,ROLLER,NEEDLE Index 3040-12-164-4570 CYLINDER ASSEMBLY,A

National Stock Number:
3120-12-164-4569

Federal Supply Class:
3120

National Item Identification Number:
121644569

Description:
BEARING,WASHER,THRUST

Detail:
An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also WASHER, FLAT and SPACER, SLEEVE.


Manufacturer Information:
0287 4834D0272ROLLS-ROYCE DEUTSCHLAND LTD & CO KG DBA ROLLS-ROYCE DEUTSCHLAND
LS1528D2456SCHAEFFLER AEROSPACE GERMANY GMBH & CO. KG
LS1528D2457SKF GMBH
LS1528D8984SCHAEFFLER TECHNOLOGIES AG & CO. KG


Techincal Specification:
DIAMETER15.0 MILLIMETERS NOMINAL
CENTER HOLE SHAPE STYLEROUND
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING60.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM
MATERIALSTEEL OVERALL
OUTSIDE DIAMETER28.0 MILLIMETERS NOMINAL
OVERALL THICKNESS2.75 MILLIMETERS NOMINAL
STYLE DESIGNATORROUND
SURFACE CONDITIONGROUND


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