3110-01-289-9253 BEARING,ROLLER,NEEDLE Index 3120-01-289-9255 BEARING,SLEEVE

National Stock Number:
3110-01-289-9254

Federal Supply Class:
3110

National Item Identification Number:
012899254

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:
717512338-00104939LOCKHEED MARTIN CORPORATION
717512338-00140920MPB CORP
P45140920MPB CORP
717512338-00183086NEW HAMPSHIRE BALL BEARINGS INC


Techincal Specification:
MATERIALSTEEL COMP 440C BALL
STEEL COMP 440C INNER RING
STEEL COMP 440C OUTER RING
PLASTIC POLYTETRAFLUOROETHYLENE RETAINER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE BALL
QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE INNER RING
QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OUTER RING
AMS 3655 ASSN STD SINGLE MATERIAL RESPONSE RETAINER
SURFACE TREATMENTPASSIVATE BALL
PASSIVATE INNER RING
PASSIVATE OUTER RING
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONCODE 2402,717806000 CAGEC 04939 MFR REF SINGLE TREATMENT RESPONSE BALL
CODE 2402,717806000 CAGEC 04939 MFR REF SINGLE TREATMENT RESPONSE INNER RING
CODE 2402,717806000 CAGEC 04939 MFR REF SINGLE TREATMENT RESPONSE OUTER RING
STYLE DESIGNATORCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
OVERALL WIDTH0.3120 INCHES NOMINAL
BORE DIAMETER0.6250 INCHES NOMINAL
OVERALL OUTSIDE DIAMETER0.8750 INCHES NOMINAL
LUBRICATION MATERIALOIL
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONCODE 7001,717806000 CAGEC 04939 MFR REF SINGLE MATERIAL RESPONSE
STANDARD TOLERANCE DESIGNATIONABEC NO. 7T
SURFACE FINISHGROUND
RETAINER FABRICATION METHODMACHINED
LOAD DIRECTIONANGULAR
BEARING PRELOAD RATING4.0 POUNDS MINIMUM AND
6.0 POUNDS MAXIMUM
CONTACT ANGLE30.0 DEGREES NOMINAL
SPECIAL FEATURESEACH BEARING SHALL BE LUBRICATED WITH 2 DROPS OF SPECIFIED LUBRICANT


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