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National Stock Number:
3020-00-949-1587
Federal Supply Class:
3020
National Item Identification Number:
009491587
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:
| 1340063-120 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | L310014060 | 36090 | LOCKHEED MARTIN LIBRASCOPE CORP |
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Techincal Specification:
| BACKLASH DESIGNATION | GRADE C | | BORE NOMINAL DIAMETER | 0.188 INCHES BOTH ENDS | | BORE STYLE | PLAIN BOTH ENDS | | FACE NOMINAL WIDTH | 0.125 INCHES | | HUB STYLE DESIGNATOR | PINNED FIRST END | | HUB NOMINAL DIAMETER | 0.375 INCHES FIRST END | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-268,ALLOY ALCLAD,T4 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-325,GRADE T6 FED SPEC 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6061 OVERALL | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.250 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 1.2698 INCHES | | PITCH DIAMETER | 1.2500 INCHES NOMINAL | | PRECISION CLASSIFICATION | QUALITY NUMBER 12 | | 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 | 120 | | TOOTH FORM | SPECIAL |
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