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National Stock Number:
3110-00-143-3017
Federal Supply Class:
3110
National Item Identification Number:
001433017
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:
| A4 | 77896 | REXNORD INDUSTRIES, LLC | | DAS4-20A | 77896 | REXNORD INDUSTRIES, LLC | | DAS4-20AQ | 77896 | REXNORD INDUSTRIES, LLC | | DAS4-20A | F7527 | I.S.O. ROULEMENTS |
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Techincal Specification:
| MATERIAL | STEEL COMP E52100 INNER RING | | STEEL COMP 4140 LOCKING COLLAR | | STEEL COMP E52100 OUTER RING | | COPPER ALLOY RETAINER | | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAL | | STEEL COMP E52100 SHAFT | | STEEL COMP 430 SHIELD | | STEEL COMP 4140 SLEEVE | | MATERIAL DOCUMENT AND CLASSIFICATION | IL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE INNER RING | | AMS 6382 ASSN STD SINGLE MATERIAL RESPONSE LOCKING COLLAR | | MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE OUTER RING | | QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE RETAINER | | MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE SHAFT | | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE SHIELD | | AMS 6382 ASSN STD SINGLE MATERIAL RESPONSE SLEEVE | | STYLE DESIGNATOR | CONCAVE ROLLERS, DOUBLE CLOSURE, SELF ALIGNING | | BORE DIAMETER | 0.2500 INCHES NOMINAL | | OVERALL OUTSIDE DIAMETER | 1.2500 INCHES NOMINAL | | OUTER RING WIDTH | 0.7500 INCHES NOMINAL | | INNER RING WIDTH | 1.0000 INCHES NOMINAL | | SURFACE TREATMENT | CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES | | LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE | | RETAINER FABRICATION METHOD | CAST | | SEAL QUANTITY | 2 | | BEARING SEAL TYPE | CONTACT | | SPECIAL FEATURES | 10 DEG SELF ALIGNMENT IN EITHER DIRECTION,LUBRICANT HOLES AND GROOVE IN OUTER RING | | LUBRICATION MATERIAL | GREASE |
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