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National Stock Number:
3020-00-889-7440
Federal Supply Class:
3020
National Item Identification Number:
008897440
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:
| 1240136-93 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | L310000663 | 36090 | LOCKHEED MARTIN LIBRASCOPE CORP |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 2024 OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | TEETH QUANTITY | 93 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 12 | | BACKLASH DESIGNATION | GRADE C | | STYLE DESIGNATOR | PROTRUDING HUB | | PITCH DIAMETER | 0.9681 INCHES MINIMUM AND | | 0.9688 INCHES MAXIMUM | | FACE NOMINAL WIDTH | 0.125 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.187 INCHES FIRST END | | BORE NOMINAL DIAMETER | 0.187 INCHES BOTH ENDS | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 10001 | | DESIGN CONTROL REFERENCE | 1240136-93 |
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