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National Stock Number:
3020-00-074-6783
Federal Supply Class:
3020
National Item Identification Number:
000746783
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:
| 577R646 | 97942 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 577R646H06 | 06983 | ZAGORA GEAR PRODUCTS INC | | 577R646H06 | 23266 | SECS, INC. | | 577R646H06 | 95138 | DIXON VALVE & COUPLING COMPANY, LLC | | 577R646H06 | 97942 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 610646-6 | 00141 | ROLLER BEARING CO OF AMERICA, INC | | 9716-27 | 00328 | DESIGNATRONICS INCORPORATED |
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Techincal Specification:
| BACKLASH DESIGNATION | GRADE E | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS | | FACE NOMINAL WIDTH | 0.104 INCHES | | HUB NOMINAL DIAMETER | 0.500 INCHES FIRST END | | HUB STYLE DESIGNATOR | PINNED FIRST END | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CLASS 303,COND A FED SPEC SINGLE MATERIAL RESPONSE HUB | | MATERIAL | ALUMINUM ALLOY 2024 BODY | | MATERIAL | STEEL COMP 303 HUB | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.281 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 1.531 INCHES | | PITCH DIAMETER | 1.4993 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM | | PRECISION CLASSIFICATION | QUALITY NUMBER 12 | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUB | | SURFACE TREATMENT | ANODIZE BODY | | SURFACE TREATMENT | PASSIVATE HUB | | TEETH QUANTITY | 96 | | TOOTH FORM | STANDARD |
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