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National Stock Number:
3020-00-870-8146
Federal Supply Class:
3020
National Item Identification Number:
008708146
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:
| 1755256 | 56232 | LOCKHEED MARTIN CORPORATION | | 555-00-200000000 | D0078 | DIEHL DEFENCE GMBH & CO. KG |
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Techincal Specification:
| MATERIAL | STEEL COMP 303 HUB | | ALUMINUM ALLOY 2024 TEETH | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE HUB | | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE TEETH | | SURFACE TREATMENT | PASSIVATE HUB | | ANODIZE TEETH | | TEETH QUANTITY | 60 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 14.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUBS | | PITCH DIAMETER | 0.6000 INCHES NOMINAL | | NOMINAL OVERALL LENGTH | 0.280 INCHES | | NOMINAL OUTSIDE DIAMETER | 0.618 INCHES | | FACE NOMINAL WIDTH | 0.157 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.062 INCHES BOTH ENDS | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.094 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | PLAIN BOTH ENDS | | HUB NOMINAL DIAMETER | 0.218 INCHES BOTH ENDS | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 56232 | | DESIGN CONTROL REFERENCE | 1755256 |
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