3020-01-184-9871 GEAR,BEVEL Index 3020-01-184-9873 GEAR,HELICAL

National Stock Number:
3020-01-184-9872

Federal Supply Class:
3020

National Item Identification Number:
011849872

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:
7C355211083CATERPILLAR INC
7N759211083CATERPILLAR INC


Techincal Specification:
BODY STYLEWEBBED, WITH LIGHTENING HOLES
BORE STYLETAPERED W/KEYWAY BOTH ENDS
FACE NOMINAL WIDTH16.21 MILLIMETERS
HARDNESS RATING85.0 ROCKWELL SUPERFICIAL 15-N NOMINAL OVERALL
HELIX ANGLE18.0000 DEGREES
KEYWAY NOMINAL WIDTH4.03 MILLIMETERS BOTH ENDS
HUB NOMINAL DIAMETER38.50 MILLIMETERS BOTH ENDS
HUB STYLE DESIGNATORPLAIN BOTH ENDS
III MATERIALSTEEL OVERALL
PITCH DIAMETER184.279 MILLIMETERS NOMINAL
PRESSURE ANGLE20.0000 DEGREES
PROPRIETARY CHARACTERISTICSPACS
NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM12.98 MILLIMETERS FIRST END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END6.35 MILLIMETERS FIRST END
NOMINAL DISTANCE BETWEEN BODY FACE AND RECESSED HUB END1.94 MILLIMETERS SECOND END
NOMINAL OUTSIDE DIAMETER188.21 MILLIMETERS
STYLE DESIGNATORONE PROTRUDING HUB, ONE RECESSED HUB
TEETH QUANTITY69
TEETH TYPESINGLE HELIX
TAPER MAJOR NOMINAL DIAMETER21.00 MILLIMETERS FIRST END
TOOTH DIRECTIONRIGHT
TOOTH FORMSTANDARD


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