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National Stock Number:
3020-00-407-4808
Federal Supply Class:
3020
National Item Identification Number:
004074808
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:
| 1240134-84 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | L310000594 | 36090 | LOCKHEED MARTIN LIBRASCOPE CORP |
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Techincal Specification:
| ATTACHMENT METHOD | CLAMP | | BORE NOMINAL DIAMETER | 0.187 INCHES BOTH ENDS | | BORE STYLE | PLAIN BOTH ENDS | | CLAMPING SURFACE NOMINAL LENGTH | 0.256 INCHES FIRST END | | FACE NOMINAL WIDTH | 0.124 INCHES | | HUB NOMINAL DIAMETER | 0.248 INCHES FIRST END | | HUB STYLE DESIGNATOR | SPLIT FIRST END | | MATERIAL | ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6062 OVERALL | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.308 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 0.894 INCHES | | PITCH DIAMETER | 0.8750 INCHES NOMINAL | | PRECISION CLASSIFICATION | QUALITY NUMBER 13 OR QUALITY NUMBER 14 | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUB | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | TEETH QUANTITY | 84 | | TOOTH FORM | STANDARD |
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