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National Stock Number:
3120-01-286-6182
Federal Supply Class:
3120
National Item Identification Number:
012866182
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.
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Manufacturer Information:
| 6W8278 | 11083 | CATERPILLAR INC |
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Techincal Specification:
| DIAMETER | 71.6 MILLIMETERS MINIMUM AND 72.4 MILLIMETERS MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HARDNESS RATING | 85.0 ROCKWELL SUPERFICIAL 15-N MINIMUM OVERALL | | KEY LENGTH | 14.5 MILLIMETERS NOMINAL | | KEY QUANTITY | 4 | | KEY WIDTH | 19.0 MILLIMETERS NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | 1E166,CAGEC 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 1008 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 111.0 MILLIMETERS NOMINAL | | OVERALL THICKNESS | 2.97 MILLIMETERS MINIMUM AND 3.13 MILLIMETERS MAXIMUM | | STYLE DESIGNATOR | ROUND W/SQUARE KEYS | | SURFACE FINISH | 0.8 MICROMETERS RIGHT SIDE | | SURFACE FINISH | 0.8 MICROMETERS LEFT SIDE | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 1E2034,CAGEC 11083 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PHOSPHATE MANGANESE OVERALL |
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