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National Stock Number:
3020-00-278-8191
Federal Supply Class:
3020
National Item Identification Number:
002788191
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:
| 179676-000 | 81413 | BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. | | 62-0019 | 81413 | BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC. |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 2024 BODY | | STEEL HUB | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-355,COND T3 FED SPEC SINGLE MATERIAL RESPONSE BODY | | MIL-S-7720,COMP 303S,COND A MIL SPEC SINGLE MATERIAL RESPONSE HUB | | SURFACE TREATMENT | PASSIVATE HUB | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072 E300 MIL SPEC SINGLE TREATMENT RESPONSE HUB | | TEETH QUANTITY | 108 | | TOOTH FORM | STANDARD | | PRESSURE ANGLE | 20.0000 DEGREES | | PRECISION CLASSIFICATION | QUALITY NUMBER 9 | | STYLE DESIGNATOR | PROTRUDING HUBS | | PITCH DIAMETER | 1.1250 INCHES NOMINAL | | NOMINAL OUTSIDE DIAMETER | 1.136 INCHES | | FACE NOMINAL WIDTH | 0.062 INCHES | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.203 INCHES FIRST END | | 0.033 INCHES SECOND END | | HUB STYLE DESIGNATOR | SPLIT FIRST END | | PLAIN SECOND END | | HUB NOMINAL DIAMETER | 0.186 INCHES FIRST END | | 0.156 INCHES SECOND END | | ATTACHMENT METHOD | CLAMP |
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