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National Stock Number:
3020-00-546-9763
Federal Supply Class:
3020
National Item Identification Number:
005469763
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:
| 7604269 | 19200 | US ARMY ARDEC RDECOM | | BA92745 | 64959 | AMERICAN TELEPHONE AND TELEGRAPH CO |
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Techincal Specification:
| BORE STYLE | W/ KEYWAY BOTH ENDS | | BORE NOMINAL DIAMETER | 0.240 INCHES BOTH ENDS | | END NOMINAL DIAMETER | 0.625 INCHES FIRST END | | END NOMINAL LENGTH | 0.069 INCHES FIRST END | | FACE NOMINAL WIDTH | 0.183 INCHES | | FIRST STEP NOMINAL DIAMETER | 1.000 INCHES FIRST END | | FIRST STEP NOMINAL LENGTH | 0.062 INCHES FIRST END | | HUB STYLE DESIGNATOR | 1 STEP FIRST END | | KEYWAY NOMINAL WIDTH | 0.062 INCHES BOTH ENDS | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/4,T3 FED SPEC SINGLE MATERIAL RESPONSE BODY | | MATERIAL | ALUMINUM ALLOY 2024 BODY | | MATERIAL | STEEL CORROSION RESISTING HUB | | NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 0.168 INCHES BOTH ENDS | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.132 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 2.019 INCHES | | NOMINAL OVERALL LENGTH | 0.328 INCHES | | PITCH DIAMETER | 1.9772 INCHES MINIMUM AND 1.9792 INCHES MAXIMUM | | PRECISION CLASSIFICATION | QUALITY NUMBER 8 | | PRESSURE ANGLE | 14.5000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUB | | TEETH QUANTITY | 95 | | TOOTH FORM | STANDARD |
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