3020-00-949-1587 GEAR,ANTIBACKLASH,SPUR Index 5998-00-949-1589 CIRCUIT CARD ASSEMBLY

National Stock Number:
3020-00-949-1588

Federal Supply Class:
3020

National Item Identification Number:
009491588

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:
1340063-18010001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
L31001412036090LOCKHEED MARTIN LIBRASCOPE CORP


Techincal Specification:
SURFACE TREATMENTANODIZE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
TEETH QUANTITY180
TOOTH FORMSPECIAL
PRESSURE ANGLE20.0000 DEGREES
PRECISION CLASSIFICATIONQUALITY NUMBER 12
BACKLASH DESIGNATIONGRADE C
STYLE DESIGNATORPROTRUDING HUB
PITCH DIAMETER1.9583 INCHES NOMINAL
NOMINAL OVERALL LENGTH0.375 INCHES
NOMINAL OUTSIDE DIAMETER1.9780 INCHES
FACE NOMINAL WIDTH0.125 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.250 INCHES FIRST END
ATTACHMENT METHODMOUNTING HOLE
MOUNTING HOLE TYPE AND QUANTITY1 THREADED TRANSVERSELY THROUGH HUB, FIRST END
THE MANUFACTURERS DATA
MANUFACTURERS CODE10001
DESIGN CONTROL REFERENCE1340063-180


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