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National Stock Number:
3020-00-445-4819
Federal Supply Class:
3020
National Item Identification Number:
004454819
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:
| 60773-3 | 82340 | L3HARRIS TECHNOLOGIES, INC. | | 60773-3 | 9Y580 | L3HARRIS TECHNOLOGIES, INC. |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 2024 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-268 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | TEETH QUANTITY | 87 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 12 | | BACKLASH DESIGNATION | GRADE D | | STYLE DESIGNATOR | PROTRUDING HUBS | | PITCH DIAMETER | 1.8125 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 1.8542 INCHES | | FACE NOMINAL WIDTH | 0.125 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.234 INCHES FIRST END | | 0.098 INCHES SECOND END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS | | ATTACHMENT METHOD | CLAMP | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 9Y580 | | DESIGN CONTROL REFERENCE | 60773-3 |
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