3110-01-125-6882 BEARING,ROLLER,AIRFRAME Index 3110-01-125-6884 BEARING,BALL,STACK

National Stock Number:
3110-01-125-6883

Federal Supply Class:
3110

National Item Identification Number:
011256883

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:
211RD-401B38443SKF USA INC.
SB1161-10238443SKF USA INC.
SB1161-10278286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
MATERIALSTEEL COMP M50 BALL
STEEL COMP M50 INNER RING
STEEL COMP M50 OUTER RING
COPPER ALLOY RETAINER
STYLE DESIGNATORCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
OVERALL WIDTH1.6335 INCHES MINIMUM AND
1.6535 INCHES MAXIMUM
BORE DIAMETER2.1651 INCHES MINIMUM AND
2.1654 INCHES MAXIMUM
OVERALL OUTSIDE DIAMETER3.9367 INCHES MINIMUM AND
3.9370 INCHES MAXIMUM
STANDARD TOLERANCE DESIGNATIONRBEC NO.5
SURFACE FINISHGROUND
RETAINER FABRICATION METHODMACHINED
LOAD DIRECTIONRADIAL
INTERNAL CLEARANCE0.0028 INCHES MINIMUM RADIAL AND
0.0032 INCHES MAXIMUM RADIAL
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE78286
MFR SOURCE CONTROLLING REFERENCESB1161-102


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