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National Stock Number:
3020-00-341-9845
Federal Supply Class:
3020
National Item Identification Number:
003419845
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:
| 1237437-2 | 55972 | HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS |
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Techincal Specification:
| END NOMINAL DIAMETER | 0.046 INCHES FIRST END | | END NOMINAL DIAMETER | 0.046 INCHES SECOND END | | END NOMINAL LENGTH | 0.051 INCHES FIRST END | | END NOMINAL LENGTH | 0.097 INCHES SECOND END | | FIRST STEP NOMINAL DIAMETER | 0.095 INCHES FIRST END | | FIRST STEP NOMINAL LENGTH | 0.046 INCHES FIRST END | | HUB STYLE DESIGNATOR | 3 STEPS BOTH ENDS | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.097 INCHES SECOND END | | NOMINAL OUTSIDE DIAMETER | 0.644 INCHES | | NOMINAL OVERALL LENGTH | 0.536 INCHES | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CLASS 6,TYPE C FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 416 OVERALL | | SECOND STEP NOMINAL DIAMETER | 0.416 INCHES FIRST END | | SECOND STEP NOMINAL LENGTH | 0.154 INCHES FIRST END | | PITCH DIAMETER | 0.6289 INCHES MINIMUM AND 0.6299 INCHES MAXIMUM | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 OR QUALITY NUMBER 11 | | PRESSURE ANGLE | 20.0000 DEGREES | | SPECIAL FEATURES | ADDITIONAL GEAR IS THIRD STEP OF FIRST END PITCH DIAMETER 0.4005 INCH MINIMUM,0.4015 INCH MAXIMUM,51 TEETH,20 DEGREE PRESSURE ANGLE | | TOOTH FORM | STANDARD | | STYLE DESIGNATOR | PERIPHERAL FACE, HUBLESS | | TEETH QUANTITY | 80 |
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