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National Stock Number:
3020-01-196-7618
Federal Supply Class:
3020
National Item Identification Number:
011967618
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:
| 13084655 | 04939 | LOCKHEED MARTIN CORPORATION | | 13084655 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH | | AB550-180/CT-P2 1/8 BORE | 01351 | SOUTHERN GEAR & MACHINE INC | | 13084655 | 8V613 | THE BOEING COMPANY |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 2024 BODY | | STEEL HUB | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,T351 FED SPEC SINGLE MATERIAL RESPONSE BODY | | MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE HUB | | SURFACE TREATMENT | ANODIZE BODY | | PASSIVATE HUB | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE BODY | | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE HUB | | TEETH QUANTITY | 180 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUB | | PITCH DIAMETER | 1.8750 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 1.8958 INCHES | | FACE NOMINAL WIDTH | 0.125 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.312 INCHES FIRST END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.125 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | SPLIT FIRST END | | HUB NOMINAL DIAMETER | 0.188 INCHES FIRST END | | CLAMPING SURFACE NOMINAL LENGTH | 0.250 INCHES FIRST END |
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