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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:
| MATERIAL | ALUMINUM ALLOY BODY | | STEEL CORROSION RESISTING HUB | | SURFACE TREATMENT | ANODIZE BODY | | PASSIVATE HUB | | TEETH QUANTITY | 120 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 OR | | QUALITY NUMBER 11 | | STYLE DESIGNATOR | PROTRUDING HUB | | PITCH DIAMETER | 1.8750 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 1.906 INCHES | | FACE NOMINAL WIDTH | 0.125 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.250 INCHES FIRST END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.188 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | PINNED FIRST END | | HUB NOMINAL DIAMETER | 0.563 INCHES FIRST END | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 01351 | | DESIGN CONTROL REFERENCE | AB250-120-1875 |
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