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National Stock Number:
3020-00-771-9033
Federal Supply Class:
3020
National Item Identification Number:
007719033
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:
| 9174826 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | VC-AA-102PRECIS0NCLASS1C | 01147 | ARCH GEAR WORKS INC |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY BODY | | ALUMINUM ALLOY HUB | | SURFACE TREATMENT | ANODIZE BODY | | ANODIZE HUB | | TEETH QUANTITY | 106 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 | | STYLE DESIGNATOR | PROTRUDING HUBS | | PITCH DIAMETER | 1.6562 INCHES NOMINAL | | NOMINAL OVERALL LENGTH | 0.422 INCHES | | NOMINAL OUTSIDE DIAMETER | 1.687 INCHES | | FACE NOMINAL WIDTH | 0.125 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.281 INCHES FIRST END | | 0.016 INCHES SECOND END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | PINNED FIRST END | | PLAIN SECOND END | | HUB NOMINAL DIAMETER | 0.813 INCHES FIRST END | | 0.625 INCHES SECOND END |
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