3020-00-264-9639 GEAR,HELICAL Index 3020-00-264-9646 GEAR,SPUR

National Stock Number:
3020-00-264-9640

Federal Supply Class:
3020

National Item Identification Number:
002649640

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:
324418555380HATCH & KIRK, INC.
324418572915GENERAL MOTORS CORP ELECTRO-MOTIVE DIV
324418582005ALLARD NAZARIAN GROUP, INC.
6-160582005ALLARD NAZARIAN GROUP, INC.


Techincal Specification:
BODY STYLEPLAIN, SOLID
BORE NOMINAL DIAMETER2.9557 INCHES BOTH ENDS
BORE STYLESTRAIGHT SPLINE BOTH ENDS
END NOMINAL DIAMETER5.906 INCHES FIRST END
END NOMINAL LENGTH3.9375 INCHES FIRST END
FACE NOMINAL WIDTH3.750 INCHES
FIRST STEP NOMINAL DIAMETER6.500 INCHES FIRST END
FIRST STEP NOMINAL LENGTH0.500 INCHES FIRST END
HARDNESS RATING58.0 ROCKWELL C MINIMUM AND 61.0 ROCKWELL C MAXIMUM TEETH
HARDNESS RATING58.0 ROCKWELL C MINIMUM AND 61.0 ROCKWELL C MAXIMUM HUB
HELIX ANGLE23.0000 DEGREES
HUB STYLE DESIGNATOR1 STEP FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-890,ALLOY NO. 3 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
PITCH DIAMETER6.4200 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END4.4375 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER6.8700 INCHES
SPECIAL FEATURESCOUNTERBORE BOTH ENDS,1.125 IN. DEEP BY 4.505 IN. DIA AND 1.625 IN. DEEP BY 4.125 IN. DIA
SPLINE QUANTITY10 BOTH ENDS
STYLE DESIGNATORPROTRUDING HUB
TEETH QUANTITY26
TEETH TYPESINGLE HELIX
TOOTH DIRECTIONRIGHT
TOOTH FORMSTANDARD


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