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National Stock Number:
3020-00-862-1572
Federal Supply Class:
3020
National Item Identification Number:
008621572
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:
| 1755640 | 56232 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
| MATERIAL | STEEL COMP 303 HUB | | ALUMINUM ALLOY 2024 TEETH | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE HUB | | QQ-A-250/4,T4 FED SPEC SINGLE MATERIAL RESPONSE TEETH | | SURFACE TREATMENT | PASSIVATE HUB | | ANODIZE TEETH | | TEETH QUANTITY | 40 | | PRESSURE ANGLE | 14.5000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUBS | | PITCH DIAMETER | 0.6250 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 0.656 INCHES | | FACE NOMINAL WIDTH | 0.126 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.196 INCHES FIRST END | | 0.008 INCHES SECOND END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.091 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | SPLIT FIRST END | | PLAIN SECOND END | | HUB NOMINAL DIAMETER | 0.187 INCHES FIRST END | | 0.220 INCHES SECOND END | | ATTACHMENT METHOD | CLAMP | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 56232 | | DESIGN CONTROL REFERENCE | 1755640 |
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