3020-00-391-0925 GEAR,HELICAL Index 3020-00-391-0927 GEAR,HELICAL

National Stock Number:
3020-00-391-0926

Federal Supply Class:
3020

National Item Identification Number:
003910926

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:
327583255380HATCH & KIRK, INC.
327583272915GENERAL MOTORS CORP ELECTRO-MOTIVE DIV


Techincal Specification:
BODY STYLEPLAIN, SOLID
BORE NOMINAL DIAMETER9.061 INCHES BOTH ENDS
BORE STYLEW/ KEYWAY BOTH ENDS
COUNTERBORE NOMINAL DEPTH0.560 INCHES FIRST END
COUNTERBORE NOMINAL DIAMETER10.063 INCHES FIRST END
FACE NOMINAL WIDTH3.498 INCHES
HARDNESS RATING10.0 ROCKWELL C MINIMUM AND 20.0 ROCKWELL C MAXIMUM OVERALL
HELIX ANGLE27.3217 DEGREES
KEYWAY NOMINAL WIDTH0.748 INCHES BOTH ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-890,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM4.769 INCHES BOTH ENDS
NOMINAL OUTSIDE DIAMETER11.084 INCHES
PITCH DIAMETER10.8000 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
SPECIAL FEATURESSIX DOWEL PINS,ONE SPACER RING
STYLE DESIGNATORHUBLESS
TEETH QUANTITY54
TEETH TYPESINGLE HELIX
TOOTH FORMSTANDARD
TOOTH DIRECTIONRIGHT


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