3110-01-087-2655, BEARING,BALL,AIRFRAME

National Stock Number:
3110-01-087-2655

Federal Supply Class:
3110

National Item Identification Number:
010872655

Description:
BEARING,BALL,AIRFRAME

Detail:
A cylindrical item in which the inner or outer ring turns upon row(s) of hardened BALL, 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, BALL, ANNULAR.

Manufacturer Information:

38950-00903-102	78286	SIKORSKY AIRCRAFT CORPORATION
MKP4AAXXXX	21335	TIMKEN CO
MKSP4A A1173	21335	TIMKEN CO

Techincal Specification:

ALIGNMENT TYPE	SELF-ALIGNING
BEARING SEAL TYPE	CONTACT
BORE DIAMETER	0.2497 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM
INNER RING WIDTH	0.2775 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM
LOAD DIRECTION	RADIAL
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION	MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
LUBRICATION MATERIAL	GREASE
MATERIAL DOCUMENT AND CLASSIFICATION	AMS3652 ASSN STD SINGLE MATERIAL RESPONSE SEAL
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 BALL
MATERIAL	PLASTIC POLYTETRAFLUOROETHYLENE SEAL
MATERIAL	STEEL COMP E52100 BALL
MATERIAL	STEEL COMP E52100 OUTER RING
MATERIAL	STEEL COMP E52100 INNER RING
OUTER RING WIDTH	0.2140 INCHES MINIMUM AND 0.2190 INCHES MAXIMUM
OVERALL OUTSIDE DIAMETER	0.7496 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM
SEAL QUANTITY	2
SELF-ALIGNMENT LOCATION	INTERNAL
SPECIAL FEATURES	40 TO 50 PERCENT FULL OF SPECIFIED LUBRICANT
STYLE DESIGNATOR	SINGLE ROW SELF ALIGNING SINGLE ROW INNER RING EXTENDED BOTH SIDES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE EXPOSED SURFACES AS MOUNTED
SURFACE TREATMENT	CADMIUM EXPOSED SURFACES AS MOUNTED

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