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National Stock Number:
3020-00-014-5803
Federal Supply Class:
3020
National Item Identification Number:
000145803
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:
| 103545 | 10138 | ASTRONAUTICS CORPORATION OF AMERICA |
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Techincal Specification:
| END NOMINAL LENGTH | 0.062 INCHES FIRST END | | END NOMINAL DIAMETER | 0.093 INCHES FIRST END | | FACE NOMINAL WIDTH | 0.141 INCHES | | FIRST STEP NOMINAL DIAMETER | 0.125 INCHES FIRST END | | FIRST STEP NOMINAL LENGTH | 0.020 INCHES FIRST END | | HUB STYLE DESIGNATOR | 2 STEPS FIRST END | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7720,COMP 303S MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303S OVERALL | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.482 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 0.6910 INCHES | | PITCH DIAMETER | 0.6750 INCHES NOMINAL | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 | | PRESSURE ANGLE | 20.0000 DEGREES | | SECOND STEP NOMINAL DIAMETER | 0.187 INCHES FIRST END | | SECOND STEP NOMINAL LENGTH | 0.395 INCHES FIRST END | | STYLE DESIGNATOR | PROTRUDING HUB | | SURFACE TREATMENT | PASSIVATE OVERALL | | TEETH QUANTITY | 81 | | TOOTH FORM | STANDARD |
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