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National Stock Number:
3120-01-212-4740
Federal Supply Class:
3120
National Item Identification Number:
012124740
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:
| 2W7585 | 11083 | CATERPILLAR INC |
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Techincal Specification:
| DIAMETER | 27.75 MILLIMETERS MINIMUM AND 28.25 MILLIMETERS MAXIMUM | | CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | CHAMFERED FIRST OUTSIDE CORNER | | CORNER SHAPE | CHAMFERED SECOND OUTSIDE CORNER | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | MATERIAL DOCUMENT AND CLASSIFICATION | 1E231,FSCM 11083 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | COPPER ALLOY 932 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 109.75 MILLIMETERS MINIMUM AND 110.25 MILLIMETERS MAXIMUM | | OVERALL THICKNESS | 6.85 MILLIMETERS MINIMUM AND 7.15 MILLIMETERS MAXIMUM | | SPECIAL FEATURES | THREE THROUGH HOLES LEFT OF CENTER HOLE 10.5 MM DIA,TWO HOLES CENTERED 12.0 MM ABOVE AND BELOW HORIZ CL,39.0 MM LEFT OF VERTICAL CL,ONE HOLE CENTERED ON HORIZ CL,24.6 MM LEFT OF VERTICAL CL; TWO THRU HOLE RIGHT OF CENTER HOLE 13.8 MM DIA,23.0 MM ABOVE AND BELOW HORIZ CL,25.9 MM RIGHT OF VERTICAL CL; ONE THRU HOLE 17.0 MM DIA ON HORIZ CL,30.4 MM RIGHT OF VERTICAL CL; ONE THRU HOLE 9.517 MM DIA ON VERTICAL CL,28.75 MM ABOVE HORIZ CL | | STYLE DESIGNATOR | ROUND | | SURFACE FINISH | 0.8 MICROMETERS RIGHT SIDE | | SURFACE FINISH | 0.8 MICROMETERS LEFT SIDE |
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