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National Stock Number:
3020-00-222-0895
Federal Supply Class:
3020
National Item Identification Number:
002220895
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:
| 105426 | 10138 | ASTRONAUTICS CORPORATION OF AMERICA |
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Techincal Specification:
| MATERIAL | STEEL COMP 303 BODY | | STEEL COMP 303 HUB | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7720,COND A MIL SPEC SINGLE MATERIAL RESPONSE AND | | QQ-S-766,COND A FED SPEC SINGLE MATERIAL RESPONSE BODY | | MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE HUB | | SURFACE TREATMENT | PASSIVATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171,FINISH NO. 5.4.1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | TEETH QUANTITY | 96 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUBS | | PITCH DIAMETER | 1.0000 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 1.0200 INCHES | | FACE NOMINAL WIDTH | 0.093 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.156 INCHES FIRST END | | 0.065 INCHES SECOND END | | BORE STYLE | PLAIN BOTH ENDS | | BORE NOMINAL DIAMETER | 0.121 INCHES BOTH ENDS | | HUB STYLE DESIGNATOR | PINNED FIRST END | | PLAIN SECOND END | | HUB NOMINAL DIAMETER | 0.340 INCHES FIRST END | | 0.250 INCHES SECOND END |
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