3110-01-039-9778 BALL,BEARING Index 3120-01-039-9780 BUSHING,SLEEVE

National Stock Number:
3110-01-039-9779

Federal Supply Class:
3110

National Item Identification Number:
010399779

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.


Manufacturer Information:
DAT28-40A77896REXNORD INDUSTRIES, LLC


Techincal Specification:
MATERIALSTEEL COMP E52100 INNER RING
STEEL COMP E52100 OUTER RING
COPPER ALLOY RETAINER
STEEL COMP E52100 ROLLER
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAL
STEEL COMP 430 SHIELD
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE INNER RING
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 ROLLER
MIL-S-763 MIL SPEC SINGLE MATERIAL RESPONSE SHIELD
STYLE DESIGNATORCONCAVE ROLLERS, DOUBLE CLOSURE, SELF ALIGNING
BORE DIAMETER1.7182 INCHES MINIMUM AND
1.7190 INCHES MAXIMUM
OVERALL OUTSIDE DIAMETER2.5299 INCHES MINIMUM AND
2.5310 INCHES MAXIMUM
OUTER RING WIDTH0.7050 INCHES MINIMUM AND
0.7100 INCHES MAXIMUM
INNER RING WIDTH0.8200 INCHES MINIMUM AND
0.8250 INCHES MAXIMUM
SURFACE TREATMENTCADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE ALL EXTERNAL/EXPOSED METAL SURFACES
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
RETAINER FABRICATION METHODCAST
SEAL QUANTITY2
BEARING SEAL TYPECONTACT
SPECIAL FEATURESLUBRICATION HOLES AND GROOVE IN OUTER RING,5 DEG ALIGNMENT IN EITHER DIRECTION
LUBRICATION MATERIALGREASE


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