3020-00-266-6515 GEAR,HELICAL Index 3020-00-266-6521 GEAR,HELICAL

National Stock Number:
3020-00-266-6520

Federal Supply Class:
3020

National Item Identification Number:
002666520

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:
7F394211083CATERPILLAR INC


Techincal Specification:
BODY STYLEPLAIN, SOLID
BORE STYLEINVOLUTE SPLINE BOTH ENDS
BORE NOMINAL DIAMETER2.400 INCHES BOTH ENDS
COUNTERBORE NOMINAL DEPTH1.000 INCHES FIRST END
COUNTERBORE NOMINAL DIAMETER2.3125 INCHES FIRST END
FACE NOMINAL WIDTH1.563 INCHES
HARDNESS RATING57.0 ROCKWELL C MINIMUM OVERALL AND 62.0 ROCKWELL C MAXIMUM OVERALL
HELIX ANGLE21.0394 DEGREES
HUB NOMINAL DIAMETER2.875 INCHES FIRST END
HUB NOMINAL DIAMETER2.875 INCHES SECOND END
HUB STYLE DESIGNATORPLAIN BOTH ENDS
III MATERIALSTEEL OVERALL
PITCH DIAMETER4.8210 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
PROPRIETARY CHARACTERISTICSPACS
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END1.218 INCHES BOTH ENDS
NOMINAL OUTSIDE DIAMETER5.151 INCHES
NOMINAL OVERALL LENGTH3.997 INCHES
SPLINE PITCH DIAMETER2.1000 INCHES NOMINAL BOTH ENDS
SPLINE QUANTITY16 BOTH ENDS
SPECIAL FEATURESSPLINE MINOR DIA 1.936 IN.
STYLE DESIGNATORPROTRUDING HUBS
TEETH QUANTITY27
TEETH TYPESINGLE HELIX
TOOTH DIRECTIONRIGHT
TOOTH FORMSTANDARD


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