3040-00-138-2018 GEARSHAFT,HELICAL Index 3040-00-138-2020 GEARSHAFT,HELICAL

National Stock Number:
3020-00-138-2019

Federal Supply Class:
3020

National Item Identification Number:
001382019

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:
A11629779938EMERSON ELECTRIC CO U S ELECTRICAL MOTORS DIV


Techincal Specification:
MATERIALSTEEL COMP 4142H OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAISI/SAE 4142 H ASSN STD SINGLE MATERIAL RESPONSE AND
FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING44.0 ROCKWELL C MINIMUM AND
48.0 ROCKWELL C MAXIMUM OVERALL
TEETH QUANTITY76
TEETH TYPESINGLE HELIX
TOOTH FORMSTANDARD
TOOTH DIRECTIONLEFT
PRESSURE ANGLE20.0000 DEGREES
HELIX ANGLE11.7165 DEGREES
STYLE DESIGNATORFLUSH HUB
PITCH DIAMETER4.8511 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER4.911 INCHES
FACE NOMINAL WIDTH1.750 INCHES
BORE STYLEW/ KEYWAY BOTH ENDS
BORE NOMINAL DIAMETER1.813 INCHES BOTH ENDS
KEYWAY NOMINAL WIDTH0.250 INCHES BOTH ENDS
NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM1.032 INCHES BOTH ENDS
BODY STYLEWEBBED, SOLID


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