NSN 3110-00-343-4472

Part Details | AIRFRAME BALL BEARING

3110-00-343-4472 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.

Alternate Parts: TWF2128U, TWF21-28U, TWF2128U, TWF21-28U, C2128BIE5, 3110-00-343-4472, 00-343-4472, 3110003434472, 003434472

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
31JAN 15, 197400-343-447200041 ( BEARING, BALL, AIRFRAME )
REFERENCE DRAWINGS & PICTURES

SINGLE ROW INNER RING EXTENDED BOTH SIDES

Cross Reference | NSN 3110-00-343-4472
Part Number Cage Code Manufacturer
TWF21-28U78118MPB CORPORATIONDBA TIMKEN AEROSPACE
TWF21-28U40920MPB CORPORATIONDBA TIMKEN SUPER PRECISION
C2128BIE540920MPB CORPORATIONDBA TIMKEN SUPER PRECISION
Technical Data | NSN 3110-00-343-4472
Characteristic Specifications
STYLE DESIGNATOR SINGLE ROW INNER RING EXTENDED BOTH SIDES
BORE DIAMETER1.3122 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM
OVERALL OUTSIDE DIAMETER1.7496 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM
OUTER RING WIDTH0.2500 INCHES NOMINAL
INNER RING WIDTH0.2810 INCHES NOMINAL
LUBRICATION MATERIAL OIL
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE
SHIELD QUANTITY2
LOAD DIRECTION RADIAL
SPECIAL FEATURESINNER RING RADIAL RUNOUT 0.0003 IN.,OUTER RING RADIAL RUNOUT 0.0004 IN.,OUTER RING FRACTURED AT ONE POINT,INTEGRAL SHIELDS ARE FORMED BY EXTENSION OF INNER AND OUTER RING LANDS,RADIAL CLEARANCE 0.0005 IN. MIN TO 0.0015 IN.MAX,TWO HOLDING RINGS ON OD OF OUTER RING