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National Stock Number:
3110-00-121-7760
Federal Supply Class:
3110
National Item Identification Number:
001217760
Description:
BEARING,BALL,AIRFRAME
Detail:
A cylindrical item in which the inner or outer ring turns upon row(s) of hardened BALL, BEARING which roll on a raceway, thus minimizing friction. These items are characterized by their noncorrosive qualities, lightness of weight, inch dimensions rather than metric, inner rings generally projecting beyond the faces of the outer ring, or a very narrow width inner ring having an outside diameter slightly larger than the bore diameter. Designed primarily for use in aircraft assemblies, such as control systems and surfaces of aircraft. Excludes BEARING, BALL, ANNULAR.
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Manufacturer Information:
| C707DW4K | 81755 | LOCKHEED MARTIN CORPORATION | | MDW4 | 38443 | SKF USA INC. | | MDW4KE9182 | 21335 | TIMKEN CO | | MDW4KE9182 | 3NPS1 | RBC AIRCRAFT PRODUCTS, INC. |
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Techincal Specification:
| BEARING SEAL TYPE | CONTACT | | BORE DIAMETER | 0.2497 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM | | INNER RING WIDTH | 0.8700 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM | | LOAD DIRECTION | RADIAL | | LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE | | OUTER RING WIDTH | 0.7500 INCHES NOMINAL | | OVERALL OUTSIDE DIAMETER | 0.7460 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM | | MATERIAL | RUBBER SYNTHETIC SEAL | | MATERIAL | STEEL BALL | | MATERIAL | STEEL INNER RING | | MATERIAL | STEEL OUTER RING | | SEAL QUANTITY | 2 | | SPECIAL FEATURES | 0.0001 IN. MIN,0.0005 IN. MAX RADIAL CLEARANCE UNDER 2.2 LB LOAD,0.0020 IN. NOM AXIAL PLAY UNDER 5.5 LB LOAD,OUTWARD CONVERGENT CONTACT ANGLE | | STYLE DESIGNATOR | DOUBLE ROW | | SURFACE TREATMENT | CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES |
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