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National Stock Number:
3110-00-620-5453
Federal Supply Class:
3110
National Item Identification Number:
006205453
Description:
BEARING,BALL,STACK
Detail:
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.
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Manufacturer Information:
| 7012-8DBA103B024PL8S9299H7012-7- | 38443 | SKF USA INC. | | SB1505-1 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| MATERIAL | STEEL BALL | | STEEL INNER RING | | STEEL OUTER RING | | PLASTIC POLYAMIDE RETAINER | | STYLE DESIGNATOR | STACK | | OVERALL WIDTH | 1.8596 INCHES MINIMUM AND | | 1.8896 INCHES MAXIMUM | | BORE DIAMETER | 2.3610 INCHES MINIMUM AND | | 2.3620 INCHES MAXIMUM | | OVERALL OUTSIDE DIAMETER | 3.5429 INCHES MINIMUM AND | | 3.5439 INCHES MAXIMUM | | STACK ARRANGEMENT | 2 ANGULAR CONTACT BEARINGS DUPLEX GND FOR FACE TO FACE MTG; 2 ANGULAR CONTACT BEARING DUPLEX GND FOR BACK TO BACK MTG | | 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 | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 78286 | | MFR SOURCE CONTROLLING REFERENCE | SB1505-1 |
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