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National Stock Number:
3110-00-453-6176
Federal Supply Class:
3110
National Item Identification Number:
004536176
Description:
BEARING,ROLLER,AIRFRAME
Detail:
A CYLINDRICAL ITEM IN WHICH THE INNER OR OUTER RING TURNS UPON ROW(S) OF HARDENED ROLLER, BEARING WHICH ROLL ON A RACEWAY, THUS MINIMIZING FRICTION. THESE ITEMS ARE CHARACTERIZED BY THEIR NONCORROSIVE QUALITIES, LIGHTNESS OF WEIGHT, INCH DIMENSIONS RATHER THAN METRIC, INNER RINGS GENERALLY PROJECTING BEYOND THE FACES OF THE OUTER RING, OR A VERY NARROW WIDTH INNER RING HAVING AN OUTSIDE DIAMETER SLIGHTLY LARGER THAN THE BORE DIAMETER. DESIGNED PRIMARILY FOR USE IN AIRCRAFT ASSEMBLIES, SUCH AS CONTROL SYSTEMS AND SURFACES OF AIRCRAFT. EXCLUDES BEARING, ROLLER, CYLINDRICAL.
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Manufacturer Information:
| BR12AF | 77896 | REXNORD INDUSTRIES, LLC | | DAS12-38A-41 | 77896 | REXNORD INDUSTRIES, LLC | | DAS12-38A-46 | 77896 | REXNORD INDUSTRIES, LLC | | MS28913-12C | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| BEARING SEAL TYPE | CONTACT | | BORE DIAMETER | 0.7500 INCHES NOMINAL | | INNER RING WIDTH | 1.3120 INCHES NOMINAL | | LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE | | LUBRICATION MATERIAL | GREASE | | OVERALL OUTSIDE DIAMETER | 2.3750 INCHES NOMINAL | | MATERIAL | RUBBER SYNTHETIC SEAL | | MATERIAL | STEEL INNER RING | | MATERIAL | STEEL OUTER RING | | MATERIAL | STEEL RETAINER | | MATERIAL | STEEL ROLLER | | OUTER RING WIDTH | 1.1250 INCHES NOMINAL | | SPECIAL FEATURES | 10 DEG SELF-ALIGNMENT IN EITHER DIRECTION,LUBE HOLE AND GROOVE IN OD OF OUTER RING,HEAT TREATED SLEEVE AND COLLAR ON INNER RING | | SEAL QUANTITY | 2 | | STANDARD TOLERANCE DESIGNATION | AFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS | | STYLE DESIGNATOR | CONCAVE ROLLERS, DOUBLE CLOSURE, SELF ALIGNING | | SURFACE TREATMENT | CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES |
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