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National Stock Number:
3110-00-255-4717
Federal Supply Class:
3110
National Item Identification Number:
002554717
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:
| MS28913-5B | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| MATERIAL | STEEL INNER RING | | STEEL OUTER RING | | COPPER ALLOY OR | | STEEL RETAINER | | STEEL ROLLER | | RUBBER SYNTHETIC SEAL | | STYLE DESIGNATOR | CONCAVE ROLLERS, DOUBLE CLOSURE, SELF ALIGNING | | BORE DIAMETER | 0.3120 INCHES MINIMUM AND | | 0.3125 INCHES MAXIMUM | | OVERALL OUTSIDE DIAMETER | 1.2495 INCHES MINIMUM AND | | 1.2500 INCHES MAXIMUM | | OUTER RING WIDTH | 0.6510 INCHES MINIMUM AND | | 0.6560 INCHES MAXIMUM | | INNER RING WIDTH | 0.8070 INCHES MINIMUM AND | | 0.8120 INCHES MAXIMUM | | SURFACE TREATMENT | CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES | | LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-25537 MIL SPEC SINGLE MATERIAL RESPONSE | | SEAL QUANTITY | 2 | | BEARING SEAL TYPE | CONTACT | | SPECIAL FEATURES | 10 DEG SELF ALIGNMENT IN EITHER DIRECTION,OIL HOLE AND OIL GROOVE IN OD OF OUTER RING | | LUBRICATION MATERIAL | GREASE | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 96906 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS28913-5B |
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