3020-00-402-9774 GEAR,INTERNAL Index 3020-00-402-9776 GEAR,WORM

National Stock Number:
3020-00-402-9775

Federal Supply Class:
3020

National Item Identification Number:
004029775

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:
60773-282340L3HARRIS TECHNOLOGIES, INC.
60773-29Y580L3HARRIS TECHNOLOGIES, INC.
GAB48A87P2-804391FLUID MECHANISMS OF HAUPPAUGE, INC.


Techincal Specification:
MATERIALALUMINUM ALLOY 2024 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-268 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTANODIZE BODY
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE BODY
TEETH QUANTITY87
TOOTH FORMSTANDARD
PRESSURE ANGLE20.0000 DEGREES
PRECISION CLASSIFICATIONQUALITY NUMBER 12
BACKLASH DESIGNATIONGRADE D
STYLE DESIGNATORPROTRUDING HUBS
PITCH DIAMETER1.8125 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER1.8542 INCHES
FACE NOMINAL WIDTH0.125 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.258 INCHES FIRST END
0.071 INCHES SECOND END
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.241 INCHES BOTH ENDS
HUB STYLE DESIGNATORPLAIN SECOND END
ATTACHMENT METHODCLAMP
THE MANUFACTURERS DATA
MANUFACTURERS CODE04391
DESIGN CONTROL REFERENCEGAB48A87P2-8


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