3110-01-287-2969 CONE,TAPERED ROLLER BEARING Index 3110-01-287-2971 BEARING,BALL,DUPLEX

National Stock Number:
3110-01-287-2970

Federal Supply Class:
3110

National Item Identification Number:
012872970

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:
717512504-00104939LOCKHEED MARTIN CORPORATION
P46240920MPB CORP


Techincal Specification:
MATERIALSTEEL COMP 440C BALL
STEEL COMP 440C INNER RING
STEEL COMP 440C OUTER RING
PLASTIC POLYHEXAMETHYLENE ADIPAMIDE AND
GLASS FIBER AND
PLASTIC RETAINER
STEEL COMP 302 OR
STEEL COMP 301 SHIELD
MATERIAL DOCUMENT AND CLASSIFICATIONJ1/30/TF/22,CAGEC 19959 MFR REF SINGLE MATERIAL RESPONSE RETAINER
SURFACE TREATMENTPASSIVATE BALL
PASSIVATE INNER RING
PASSIVATE OUTER RING
PASSIVATE SHIELD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONCODE 2402 OF 717806000,CAGEC 04939 MFR REF SINGLE TREATMENT RESPONSE BALL
CODE 2402 OF 717806000,CAGEC 04939 MFR REF SINGLE TREATMENT RESPONSE INNER RING
CODE 2402 OF 717806000,CAGEC 04939 MFR REF SINGLE TREATMENT RESPONSE OUTER RING
CODE 2402 OF 717806000,CAGEC 04939 MFR REF SINGLE TREATMENT RESPONSE SHIELD
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE, TANDEM MOUNTING
OVERALL WIDTH0.2500 INCHES NOMINAL
BORE DIAMETER0.2500 INCHES NOMINAL
OVERALL OUTSIDE DIAMETER0.3750 INCHES NOMINAL
LUBRICATION MATERIALOIL
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONCODE 7001 OF 717806000,CAGEC 04939 MFR REF SINGLE MATERIAL RESPONSE
STANDARD TOLERANCE DESIGNATIONABEC NO. 5P
SURFACE FINISHGROUND
SHIELD QUANTITY4
LOAD DIRECTIONRADIAL
BEARING PRELOAD RATING1.75 POUNDS MINIMUM AND
2.25 POUNDS MAXIMUM
SPECIAL FEATURESEACH BEARING LUBRICATED WITH ONE DROP FROM NO. 26 HYPODERMIC NEEDLE OF SPECIFIED LUBRICANT


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