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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:
| BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.188 INCHES BOTH ENDS | | FURNISHED ITEMS AND QUANTITY | 2 SETSCREW | | FACE NOMINAL WIDTH | 0.125 INCHES | | HUB NOMINAL DIAMETER | 0.375 INCHES FIRST END | | HUB STYLE DESIGNATOR | PINNED FIRST END | | MATERIAL | ALUMINUM ALLOY FIRST GEAR | | MATERIAL | ALUMINUM ALLOY SECOND GEAR | | MATERIAL | STEEL CORROSION RESISTING HUB | | MATERIAL | STEEL CORROSION RESISTING SPRING | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.250 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 1.219 INCHES | | NOMINAL OVERALL LENGTH | 0.375 INCHES | | PITCH DIAMETER | 1.1880 INCHES NOMINAL | | PRECISION CLASSIFICATION | QUALITY NUMBER 10 | | PRESSURE ANGLE | 20.0000 DEGREES | | SPECIAL FEATURES | MTG HOLES 90 DEGS APART | | STYLE DESIGNATOR | PROTRUDING HUB | | SURFACE TREATMENT | ANODIZE FIRST GEAR | | SURFACE TREATMENT | ANODIZE SECOND GEAR | | SURFACE TREATMENT | PASSIVATE HUB | | TEETH QUANTITY | 76 | | TOOTH FORM | STANDARD |
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