3110-01-039-9779, BEARING,ROLLER,AIRFRAME

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:

DAT28-40A

77896

REXNORD INDUSTRIES, LLC

Techincal Specification:

BEARING SEAL TYPE	CONTACT
BORE DIAMETER	1.7182 INCHES MINIMUM AND 1.7190 INCHES MAXIMUM
INNER RING WIDTH	0.8200 INCHES MINIMUM AND 0.8250 INCHES MAXIMUM
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION	MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
LUBRICATION MATERIAL	GREASE
OUTER RING WIDTH	0.7050 INCHES MINIMUM AND 0.7100 INCHES MAXIMUM
OVERALL OUTSIDE DIAMETER	2.5299 INCHES MINIMUM AND 2.5310 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE INNER RING
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE OUTER RING
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE ROLLER
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-763 MIL SPEC SINGLE MATERIAL RESPONSE SHIELD
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE RETAINER
MATERIAL	COPPER ALLOY RETAINER
MATERIAL	RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAL
MATERIAL	STEEL COMP E52100 INNER RING
MATERIAL	STEEL COMP E52100 OUTER RING
MATERIAL	STEEL COMP E52100 ROLLER
MATERIAL	STEEL COMP 430 SHIELD
RETAINER FABRICATION METHOD	CAST
SEAL QUANTITY	2
SPECIAL FEATURES	LUBRICATION HOLES AND GROOVE IN OUTER RING,5 DEG ALIGNMENT IN EITHER DIRECTION
STYLE DESIGNATOR	CONCAVE ROLLERS, DOUBLE CLOSURE, SELF ALIGNING
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE ALL EXTERNAL/EXPOSED METAL SURFACES
SURFACE TREATMENT	CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES

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