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National Stock Number:
3120-00-288-2156
Federal Supply Class:
3120
National Item Identification Number:
002882156
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:
| 9F5893 | 11083 | CATERPILLAR INC |
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Techincal Specification:
| BEARING SURFACE HOLE DIAMETER | 0.1865 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM FIRST | | BEARING SURFACE HOLE QUANTITY | 2 FIRST | | CENTER HOLE SHAPE STYLE | ROUND | | CORNER SHAPE | SQUARE ALL CORNERS | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | DIAMETER | 1.6875 INCHES NOMINAL | | LUBRICATION FEATURE | PERFORATION FLAT BEARING SURFACE | | OUTSIDE DIAMETER | 2.5625 INCHES NOMINAL | | OVERALL THICKNESS | 0.1520 INCHES MINIMUM AND 0.1540 INCHES MAXIMUM | | MATERIAL | COPPER ALLOY OUTER LAYER | | MATERIAL | STEEL INNER LAYER | | SPECIAL FEATURES | BEARING SURFACE HOLES ARE EQUALLY SPACED ON A 2.1550 IN. TO 2.1560 IN. BOLT CIRCLE | | STYLE DESIGNATOR | ROUND | | SURFACE TREATMENT | TIN LEFT SIDE |
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