3110-01-211-7520 BEARING,BALL,DUPLEX Index 3110-01-211-7522 BEARING,BALL,DUPLEX

National Stock Number:
3110-01-211-7521

Federal Supply Class:
3110

National Item Identification Number:
012117521

Description:
BEARING,BALL,DUPLEX

Detail:
Two single row annular ball bearings selected dimensionally to be a matched pair or set. The ring faces have been specially ground to specified offsets that will produce predetermined preload when mounted. May include a single row angular contact bearing with faces specially ground for duplex mounting.


Manufacturer Information:
639AS6522-3 A-C30003NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER
639AS656130003NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER
639AS6561-3 A-C30003NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER
639AS6561-3 A-C40920MPB CORP
E998-804-3 A-C40920MPB CORP
E998-808-3 A-C40920MPB CORP
SR40405B311A-3 A-C83086NEW HAMPSHIRE BALL BEARINGS INC
SR40415B30-3 A-C83086NEW HAMPSHIRE BALL BEARINGS INC


Techincal Specification:
BEARING PRELOAD RATING1.75 POUNDS MINIMUM AND 2.25 POUNDS MAXIMUM
BORE DIAMETER0.234351 INCHES MINIMUM AND 0.234400 INCHES MAXIMUM
CONTACT ANGLE5.0 DEGREES MINIMUM AND 25.0 DEGREES MAXIMUM
INTERNAL CLEARANCE0.0006 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL
LOAD DIRECTIONANGULAR
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION639AS3195 MFR REF SINGLE MATERIAL RESPONSE
LUBRICATION MATERIALGREASE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE BALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OUTER RING
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE INNER RING
MATERIALPLASTIC PHENOLIC RETAINER
MATERIALSTEEL COMP 440C BALL
MATERIALSTEEL COMP 440C INNER RING
MATERIALSTEEL COMP 440C OUTER RING
PROPRIETARY CHARACTERISTICSPACS
OVERALL OUTSIDE DIAMETER0.406051 INCHES MINIMUM AND 0.406100 INCHES MAXIMUM
OVERALL WIDTH0.2030 INCHES MINIMUM AND 0.2350 INCHES MAXIMUM
RETAINER FABRICATION METHODMACHINED
SPECIAL FEATURESCONSISTS OF ONE BEARING WITHOUT A FLANGE AND ONE BEARING WITH A FLANGE,FLANGE 0.4360 IN. MIN AND 0.4370 IN. MAX DIA,0.0220 IN. MIN AND 0.0230 IN. MAX W
SURFACE FINISHGROUND
SURFACE TREATMENTPASSIVATE BALL
SURFACE TREATMENTPASSIVATE INNER RING
SURFACE TREATMENTPASSIVATE OUTER RING


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