3020-00-406-3520 GEAR,ANTIBACKLASH,SPUR Index 3020-00-406-3522 GEAR,SPUR

National Stock Number:
3020-00-406-3521

Federal Supply Class:
3020

National Item Identification Number:
004063521

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:
60879-382340L3HARRIS TECHNOLOGIES, INC.
60879-39Y580L3HARRIS TECHNOLOGIES, INC.
GMAB64A48P2-0-240504391FLUID MECHANISMS OF HAUPPAUGE, INC.


Techincal Specification:
MATERIALALUMINUM ALLOY 2024 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-268 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
TEETH QUANTITY48
TOOTH FORMSTANDARD
PRESSURE ANGLE20.0000 DEGREES
PRECISION CLASSIFICATIONQUALITY NUMBER 12
BACKLASH DESIGNATIONGRADE D
STYLE DESIGNATORPROTRUDING HUBS
PITCH DIAMETER0.7500 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER0.7812 INCHES
FACE NOMINAL WIDTH0.104 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.234 INCHES FIRST END
0.052 INCHES SECOND END
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.241 INCHES BOTH ENDS
ATTACHMENT METHODCLAMP
THE MANUFACTURERS DATA
MANUFACTURERS CODE9Y580
DESIGN CONTROL REFERENCE60879-3


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