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National Stock Number:
3020-00-769-6142
Federal Supply Class:
3020
National Item Identification Number:
007696142
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:
| 9067262 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | AB250-76-187 | 01351 | SOUTHERN GEAR & MACHINE INC | | AB250-76-187CLASS1 | 01351 | SOUTHERN GEAR & MACHINE INC |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY FIRST GEAR | | STEEL CORROSION RESISTING HUB | | ALUMINUM ALLOY SECOND GEAR | | STEEL CORROSION RESISTING SPRING | | SURFACE TREATMENT | ANODIZE FIRST GEAR | | PASSIVATE HUB | | ANODIZE SECOND GEAR | | TEETH QUANTITY | 76 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 | | STYLE DESIGNATOR | PROTRUDING HUB | | PITCH DIAMETER | 1.1880 INCHES NOMINAL | | NOMINAL OVERALL LENGTH | 0.375 INCHES | | NOMINAL OUTSIDE DIAMETER | 1.219 INCHES | | FACE NOMINAL WIDTH | 0.125 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.250 INCHES FIRST END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.188 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | PINNED FIRST END | | HUB NOMINAL DIAMETER | 0.375 INCHES FIRST END | | FURNISHED ITEMS AND QUANTITY | 2 SETSCREW | | SPECIAL FEATURES | MTG HOLES 90 DEGS APART |
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