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National Stock Number:
3020-01-103-2778
Federal Supply Class:
3020
National Item Identification Number:
011032778
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-447421 | 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 | | NOMINAL OVERALL LENGTH | 0.864 INCHES | | PRESSURE ANGLE | 20.0000 DEGREES | | STYLE DESIGNATOR | PROTRUDING HUBS | | TEETH QUANTITY | 60 | | SPECIAL FEATURES | SPRING MATL MUSIC WIRE QQ-W-470,FINISH CADMIUM DICHROMATE MIL-F-14072 M225 | | TOOTH FORM | STANDARD |
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