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National Stock Number:
3020-00-730-7444
Federal Supply Class:
3020
National Item Identification Number:
007307444
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:
| 9139172 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Techincal Specification:
| MATERIAL | STEEL COMP 410 OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171,FINISH NO. 5.4.1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | TEETH QUANTITY | 128 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 14.5000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 12 | | STYLE DESIGNATOR | PROTRUDING HUB | | PITCH DIAMETER | 2.6667 INCHES NOMINAL | | NOMINAL OVERALL LENGTH | 0.562 INCHES | | FACE NOMINAL WIDTH | 0.250 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.312 INCHES FIRST END | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 18876 | | DESIGN CONTROL REFERENCE | 9139172 |
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