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National Stock Number:
3110-00-627-7827
Federal Supply Class:
3110
National Item Identification Number:
006277827
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.
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Manufacturer Information:
| 7021D401T | 38443 | SKF USA INC. | | 9221WI4DTE7259 | 21335 | TIMKEN CO | | SB1511-2 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| BEARING PRELOAD DESIGNATION | LIGHT | | BORE DIAMETER | 4.1331 INCHES MINIMUM AND 4.1339 INCHES MAXIMUM | | INTERNAL CLEARANCE | 0.0004 INCHES MINIMUM RADIAL AND 0.0007 INCHES MAXIMUM RADIAL | | LOAD DIRECTION | RADIAL | | OVERALL OUTSIDE DIAMETER | 5.3140 INCHES MINIMUM AND 5.3150 INCHES MAXIMUM | | OVERALL WIDTH | 0.4900 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM | | MATERIAL | PLASTIC RETAINER | | MATERIAL | STEEL BALL | | MATERIAL | STEEL INNER RING | | MATERIAL | STEEL OUTER RING | | RETAINER FABRICATION METHOD | MACHINED | | SPECIAL FEATURES | PART NO. TO BE MARKED ON FACE OF OUTER RACE PER SIKORSKY SPEC SS-8797,ASSEMBLY RELATIONSHIP MARKING V ON OD SURFACE OF BEARING,EACH BEARING TO SAME SERIAL NO.,ZERO DEG ANGULARITY UNDER ZERO LOAD,BORE AND OD TO BE COPPER PLATED 0.0001 TO 0.0003 IN. THK PER AMS2418 | | STYLE DESIGNATOR | UNIVERSAL GROUND FACES, COUNTERBORED OUTER RING, NON-SEPARABLE | | SURFACE FINISH | GROUND |
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