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National Stock Number:
3020-00-937-6451
Federal Supply Class:
3020
National Item Identification Number:
009376451
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:
| 181-917 | 90073 | CMC ELECTRONICS INC |
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Techincal Specification:
| BORE NOMINAL DIAMETER | 0.156 INCHES BOTH ENDS | | BORE STYLE | PLAIN BOTH ENDS | | END NOMINAL DIAMETER | 0.187 INCHES FIRST END | | END NOMINAL LENGTH | 0.184 INCHES FIRST END | | FACE NOMINAL WIDTH | 0.092 INCHES | | FIRST STEP NOMINAL DIAMETER | 0.250 INCHES FIRST END | | FIRST STEP NOMINAL LENGTH | 0.160 INCHES FIRST END | | HUB STYLE DESIGNATOR | 1 STEP FIRST END | | HUB STYLE DESIGNATOR | PINNED SECOND END | | HUB NOMINAL DIAMETER | 0.312 INCHES SECOND END | | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.125 INCHES SECOND END | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.202 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 0.497 INCHES | | PITCH DIAMETER | 0.4791 INCHES NOMINAL | | PRESSURE ANGLE | 20.0000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 | | STYLE DESIGNATOR | PROTRUDING HUBS | | SURFACE TREATMENT | PASSIVATE OVERALL | | TEETH QUANTITY | 46 | | TOOTH FORM | STANDARD |
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