3030-00-223-4877 BELT,POSITIVE DRIVE Index 3020-00-223-4882 GEAR,SPUR

National Stock Number:
3020-00-223-4881

Federal Supply Class:
3020

National Item Identification Number:
002234881

Description:
GEAR,HELICAL

Detail:
A GEAR, CYLINDRICAL IN FORM, WITH TEETH ON THE OUTER SURFACE AT AN ANGLE TO THE AXIS OF THE GEAR. SEE ALSO GEAR, ANTIBACKLASH, HELICAL:


Manufacturer Information:
RE-C10212353711NAVAL SEA SYSTEMS COMMAND
REC10212382005ALLARD NAZARIAN GROUP, INC.


Techincal Specification:
BODY STYLEPLAIN, SOLID
BORE NOMINAL DIAMETER0.625 INCHES BOTH ENDS
BORE STYLEW/ KEYWAY BOTH ENDS
FACE NOMINAL WIDTH0.750 INCHES
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
HELIX ANGLE19.7498 DEGREES
HUB STYLE DESIGNATORPLAIN BOTH ENDS
HUB NOMINAL DIAMETER0.938 INCHES FIRST END
HUB NOMINAL DIAMETER1.015 INCHES SECOND END
KEYWAY NOMINAL WIDTH0.187 INCHES BOTH ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-530,COND A FED SPEC SINGLE MATERIAL RESPONSE AND QQ-C-530,COND H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.219 INCHES SECOND END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.466 INCHES FIRST END
NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM0.398 INCHES BOTH ENDS
NOMINAL OUTSIDE DIAMETER1.334 INCHES
PITCH DIAMETER1.0620 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUBS
TEETH TYPESINGLE HELIX
TEETH QUANTITY12
TOOTH DIRECTIONLEFT
TOOTH FORMSTANDARD


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