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National Stock Number:
3020-00-891-1850
Federal Supply Class:
3020
National Item Identification Number:
008911850
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:
| SMC413915 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| END NOMINAL DIAMETER | 0.187 INCHES SECOND END | | END NOMINAL LENGTH | 0.125 INCHES SECOND END | | FACE NOMINAL WIDTH | 0.090 INCHES | | FIRST STEP NOMINAL DIAMETER | 0.231 INCHES SECOND END | | FIRST STEP NOMINAL LENGTH | 0.137 INCHES SECOND END | | HUB NOMINAL DIAMETER | 0.187 INCHES FIRST END | | HUB STYLE DESIGNATOR | 1 STEP SECOND END | | HUB STYLE DESIGNATOR | PLAIN FIRST END | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 303 OVERALL | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.262 INCHES SECOND END | | NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.381 INCHES FIRST END | | NOMINAL OUTSIDE DIAMETER | 0.708 INCHES | | PITCH DIAMETER | 0.6666 INCHES NOMINAL | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUBS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | TEETH QUANTITY | 64 | | TOOTH FORM | STANDARD |
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