3020-00-884-5982 GEAR,ANTIBACKLASH,SPUR Index 3020-00-884-5984 GEAR CLUSTER

National Stock Number:
3020-00-884-5983

Federal Supply Class:
3020

National Item Identification Number:
008845983

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:
512-104-02807421L3HARRIS INTERSTATE ELECTRONICS CORPORATION
512-104-02881413BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.


Techincal Specification:
ATTACHMENT METHODCLAMP
BORE NOMINAL DIAMETER0.187 INCHES BOTH ENDS
BORE STYLEPLAIN BOTH ENDS
FURNISHED ITEMS AND QUANTITY1 RETAINING RING AND 1 SPRING
FACE NOMINAL WIDTH0.057 INCHES
HUB NOMINAL DIAMETER0.312 INCHES FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.255 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER1.016 INCHES
PITCH DIAMETER1.0000 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUB
SURFACE TREATMENTPASSIVATE OVERALL
TEETH QUANTITY120


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