3020-01-177-4845 GEAR,WORM Index 6105-01-177-4847 MOTOR,ALTERNATING CURRENT

National Stock Number:
3020-01-177-4846

Federal Supply Class:
3020

National Item Identification Number:
011774846

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:
1308405604939LOCKHEED MARTIN CORPORATION
1308405658260PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH
9719-1000328DESIGNATRONICS INCORPORATED
S9719AR001000328DESIGNATRONICS INCORPORATED
MM 1504506983ZAGORA GEAR PRODUCTS INC


Techincal Specification:
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.460 INCHES BOTH ENDS
FACE NOMINAL WIDTH0.104 INCHES
HUB STYLE DESIGNATORPLAIN FIRST END
HUB NOMINAL DIAMETER0.625 INCHES FIRST END
MATERIALALUMINUM ALLOY FIRST GEAR
MATERIALALUMINUM ALLOY SECOND GEAR
MATERIALSTEEL CORROSION RESISTING HUB
MATERIALSTEEL SPRING
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.356 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER1.1833 INCHES
PITCH DIAMETER1.6667 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUB
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE FIRST GEAR
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC 3RD TREATMENT RESPONSE SECOND GEAR
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC 2ND TREATMENT RESPONSE HUB
SURFACE TREATMENTANODIZE FIRST GEAR
SURFACE TREATMENTANODIZE SECOND GEAR
SURFACE TREATMENTPASSIVATE HUB
TEETH QUANTITY140
TOOTH FORMSTANDARD


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