NSN 3110-00-978-1371

Part Details | AIRFRAME BALL BEARING

3110-00-978-1371 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: TWF45561, TWF45-56-1, TWF4S561, 2030040001, 203-004-0001, 3110-00-978-1371, 00-978-1371, 3110009781371, 009781371

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
31JAN 01, 196200-978-137100041 ( BEARING, BALL, AIRFRAME )
REFERENCE DRAWINGS & PICTURES

SINGLE ROW INNER RING EXTENDED BOTH SIDES

Cross Reference | NSN 3110-00-978-1371
Part Number Cage Code Manufacturer
TWF45-56-178118MPB CORPORATIONDBA TIMKEN AEROSPACE
TWF4S56178118MPB CORPORATIONDBA TIMKEN AEROSPACE
203-004-000195542NORTHROP GRUMMAN SYSTEMS CORPORATION
Technical Data | NSN 3110-00-978-1371
Characteristic Specifications
STYLE DESIGNATOR SINGLE ROW INNER RING EXTENDED BOTH SIDES
BORE DIAMETER2.8122 INCHES MINIMUM AND 2.8125 INCHES MAXIMUM
OVERALL OUTSIDE DIAMETER3.4997 INCHES MINIMUM AND 3.5000 INCHES MAXIMUM
OUTER RING WIDTH0.3120 INCHES NOMINAL
INNER RING WIDTH0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM
LUBRICATION MATERIAL GREASE
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
SHIELD QUANTITY2
LOAD DIRECTION RADIAL
SPECIAL FEATURESINNER RING RADIAL RUNOUT 0.0005 IN. ALSO OUTER RING RADIAL RUNOUT 0.0006 IN. ALSO INTEGRAL SHIELDS ARE FORMED BY EXTENDING THE LANDS OF THE INNER RING ALSO RADIAL CLEARANCE 0.0005 IN. MIN. 0.0015 IN. MAX ALSO OUTER RING FRACTURED AT ON POINT ALSO 2 RETAINING RINGS ON OD OF OUTER RING