3020-00-632-8901 GEAR,ANTIBACKLASH,SPUR Index 1280-00-632-8913 CONNECTOR ASSY,BACK

National Stock Number:
3020-00-632-8902

Federal Supply Class:
3020

National Item Identification Number:
006328902

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.


Manufacturer Information:
114774-0135351GE AVIATION SYSTEMS LLC
464527-196214RAYTHEON COMPANY


Techincal Specification:
ATTACHMENT METHODCLAMP
BORE NOMINAL DIAMETER0.120 INCHES BOTH ENDS
BORE STYLEPLAIN BOTH ENDS
CLAMPING SURFACE NOMINAL LENGTH0.125 INCHES FIRST END
FACE NOMINAL WIDTH0.123 INCHES
HUB NOMINAL DIAMETER0.187 INCHES FIRST END
HUB NOMINAL DIAMETER0.275 INCHES SECOND END
HUB STYLE DESIGNATORPLAIN SECOND END
HUB STYLE DESIGNATORSPLIT FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-450,SOFT FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 606 OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.079 INCHES SECOND END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.175 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER1.145 INCHES
NOMINAL OVERALL LENGTH0.382 INCHES
PITCH DIAMETER1.1250 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUBS
TEETH QUANTITY108
TOOTH FORMSTANDARD


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