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National Stock Number: 3020-00-589-8211
Federal Supply Class: 3020
National Item Identification Number: 005898211
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:
9169313 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
MATERIAL | ALUMINUM OVERALL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | SURFACE TREATMENT | ANODIZE OVERALL | TEETH QUANTITY | 102 | TOOTH FORM | STANDARD | PRESSURE ANGLE | 20.0000 DEGREES | STYLE DESIGNATOR | PROTRUDING HUBS | PITCH DIAMETER | 2.1250 INCHES NOMINAL | NOMINAL OVERALL LENGTH | 0.616 INCHES | NOMINAL OUTSIDE DIAMETER | 2.1570 INCHES | FACE NOMINAL WIDTH | 0.187 INCHES | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.157 INCHES FIRST END | | 0.125 INCHES SECOND END | BORE STYLE | PLAIN BOTH ENDS | HUB STYLE DESIGNATOR | PLAIN FIRST END | | SPLIT SECOND END | ATTACHMENT METHOD | CLAMP | THE MANUFACTURERS DATA | | MANUFACTURERS CODE | 18876 | DESIGN CONTROL REFERENCE | 9169313 |
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