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National Stock Number:
3020-00-398-0627
Federal Supply Class:
3020
National Item Identification Number:
003980627
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:
| 116167 | 88818 | KEARFOTT CORPORATION |
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Techincal Specification:
| MATERIAL | COPPER ALLOY BODY | | STEEL CORROSION RESISTING HUB | | STEEL CORROSION RESISTING TEETH | | TEETH QUANTITY | 52 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUBS | | PITCH DIAMETER | 0.8125 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 0.844 INCHES | | FACE NOMINAL WIDTH | 0.042 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.856 INCHES FIRST END | | 0.780 INCHES SECOND END | | HUB STYLE DESIGNATOR | 2 STEPS BOTH ENDS | | END NOMINAL LENGTH | 0.801 INCHES FIRST END | | 0.036 INCHES SECOND END | | END NOMINAL DIAMETER | 0.031 INCHES BOTH ENDS | | FIRST STEP NOMINAL LENGTH | 0.024 INCHES FIRST END | | 0.031 INCHES SECOND END | | FIRST STEP NOMINAL DIAMETER | 0.058 INCHES BOTH ENDS | | 0.094 INCHES FIRST END | | SECOND STEP NOMINAL LENGTH | 0.031 INCHES FIRST END | | 0.011 INCHES SECOND END | | SECOND STEP NOMINAL DIAMETER | 0.262 INCHES FIRST END | | 0.193 INCHES SECOND END |
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