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National Stock Number:
3020-00-943-4444
Federal Supply Class:
3020
National Item Identification Number:
009434444
Description:
GEAR,ANTIBACKLASH,SPUR
Detail:
An item having one fixed gear and one free gear, both having the same complement of spur gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.
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Manufacturer Information:
| 1204280-2 | 02769 | LOCKHEED MARTIN CORPORATION | | 1204280-2 | 56232 | LOCKHEED MARTIN CORPORATION | | AB250-120-0-1875 | 01351 | SOUTHERN GEAR & MACHINE INC | | AB250-120-1875 | 01351 | SOUTHERN GEAR & MACHINE INC | | 5176541 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 5176541-2 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| BORE NOMINAL DIAMETER | 0.188 INCHES BOTH ENDS | | BORE STYLE | PLAIN BOTH ENDS | | FACE NOMINAL WIDTH | 0.125 INCHES | | HUB STYLE DESIGNATOR | PINNED FIRST END | | HUB NOMINAL DIAMETER | 0.563 INCHES FIRST END | | MATERIAL | ALUMINUM ALLOY BODY | | MATERIAL | STEEL CORROSION RESISTING HUB | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.250 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 1.906 INCHES | | PITCH DIAMETER | 1.8750 INCHES NOMINAL | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 OR QUALITY NUMBER 11 | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUB | | SURFACE TREATMENT | ANODIZE BODY | | SURFACE TREATMENT | PASSIVATE HUB | | TEETH QUANTITY | 120 | | TOOTH FORM | STANDARD |
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