Part Number
Part Number:
NSN:
NIIN:
Item Name:
BEARING , BALL , STACK
Definition:
A MULTIPLE ASSEMBLY OF MORE THAN TWO BEARINGS MATCHED FOR DUPLEX MOUNTING. DESIGNED PRIMARILY FOR AIRCRAFT PROPELLER AND ROTARY WING AIRCRAFT ROTOR BLADE APPLICATIONS. SEE ALSO BEARING, BALL, ANNULAR.
CAGE Information
| Code | Company |
|---|---|
| 78286 | SIKORSKY AIRCRAFT CORPORATION |
Federal Supply Class
Title
BEARINGS, ANTIFRICTION, UNMOUNTE
Inclusions:
INCLUDES BALL BEARINGS; ROLLER BEARINGS; BALLS; RACES.
Exclusions:
EXCLUDES PLAIN BEARINGS (FSC 3120); JEWEL BEARINGS (FSC 3120)
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| ABXV | BORE DIAMETER | 2.3610 INCHES MINIMUM AND 2.3620 INCHES MAXIMUM |
| FEAT | SPECIAL FEATURES | PART NO. AND RECORDED SERIAL NO. PERMANENTLY MARKED ON EITHER RING IN ACCORDANCE W/ SIKORSKY SPEC SFEAT1S8770; INNER RING CURVATURE 50.5 PCT; OUTER RING CURVATURE 51.5 PCT; BORE AND OD COPPER PLATED 0.0001 TO 0.0003 IN. THICK PERAMS 2418; CORNERS STONED ANPOLISHED TO BLEND WITH BORE AND OD; RACE FINISHED 8 MICROINCHES AA; ALL EXTERNAL CORNERS ROUNDED 0.300 MAX ASSEMBLY RELATIONSHIP MARKING V ON OD SURFACE OF BEARING ELEMENTS |
| MATT | MATERIAL | STEEL OUTER RING |
| AGZP | STACK ARRANGEMENT | 2 ANGULAR CONTACT BEARINGS DUPLEX GND FOR FACE TO FACE MTG; 2 ANGULAR CONTACT BEARING DUPLEX GND FOR BACK TO BACK MTG |
| MATT | MATERIAL | PLASTIC POLYAMIDE RETAINER |
| MATT | MATERIAL | STEEL INNER RING |
| STYL | STYLE DESIGNATOR | STACK |
| ADGA | OVERALL OUTSIDE DIAMETER | 3.5429 INCHES MINIMUM AND 3.5439 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL BALL |
| ABMK | AND |