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National Stock Number:
3020-01-103-2777
Federal Supply Class:
3020
National Item Identification Number:
011032777
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:
| SM-D-447420 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| BACKLASH DESIGNATION | GRADE C | | FACE NOMINAL WIDTH | 0.125 INCHES | | PITCH DIAMETER | 1.2500 INCHES NOMINAL | | PRESSURE ANGLE | 20.0000 DEGREES | | NOMINAL OVERALL LENGTH | 0.971 INCHES | | SPECIAL FEATURES | SPRING MATL MUSIC WIRE QQ-W-470,FINISH CADMIUM DICHROMATE MIL-F-14072 M225 | | STYLE DESIGNATOR | PROTRUDING HUBS | | TEETH QUANTITY | 60 | | TOOTH FORM | STANDARD |
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