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National Stock Number:
3020-00-714-2087
Federal Supply Class:
3020
National Item Identification Number:
007142087
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:
| 9053741 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 9053741 | 28956 | HARDER PRECISION COMPONENTS INC |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 2024 OVERALL | | TEETH QUANTITY | 204 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PERIPHERAL FACE, HUBLESS | | PITCH DIAMETER | 4.2490 INCHES MINIMUM AND | | 4.2500 INCHES MAXIMUM | | NOMINAL OVERALL LENGTH | 0.380 INCHES | | NOMINAL OUTSIDE DIAMETER | 4.2917 INCHES | | FACE NOMINAL WIDTH | 0.278 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.046 INCHES FIRST END | | HUB STYLE DESIGNATOR | PLAIN BOTH ENDS | | ATTACHMENT METHOD | MOUNTING HOLE | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 18876 | | DESIGN CONTROL REFERENCE | 9053741 |
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