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National Stock Number:
3020-00-413-3465
Federal Supply Class:
3020
National Item Identification Number:
004133465
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:
| 10130513 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | P4-3-170 | 00141 | ROLLER BEARING CO OF AMERICA, INC |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 2024 BODY | | STEEL COMP 303 HUB | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CLASS 303,COND A FED SPEC SINGLE MATERIAL RESPONSE HUB | | SURFACE TREATMENT | ANODIZE BODY | | PASSIVATE HUB | | TEETH QUANTITY | 170 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PERIPHERAL FACE, HUBLESS | | PITCH DIAMETER | 2.6553 INCHES MINIMUM AND | | 2.6563 INCHES MAXIMUM | | NOMINAL OVERALL LENGTH | 0.609 INCHES | | NOMINAL OUTSIDE DIAMETER | 2.687 INCHES | | FACE NOMINAL WIDTH | 0.104 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.281 INCHES FIRST END | | 0.224 INCHES SECOND END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | PINNED FIRST END | | PLAIN SECOND END | | HUB NOMINAL DIAMETER | 0.500 INCHES FIRST END | | 0.625 INCHES SECOND END |
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