3020-01-254-4804 GEAR,SPUR Index 3020-01-254-4806 GEAR,SPUR

National Stock Number:
3020-01-254-4805

Federal Supply Class:
3020

National Item Identification Number:
012544805

Description:
GEAR,SPUR

Detail:
A gear, cylindrical in form, with straight teeth on the outer surface parallel to the axis of the gear. See also GEAR, ANTIBACKLASH, SPUR. For bulk material, see ROD, PINION.


Manufacturer Information:
1P675311083CATERPILLAR INC


Techincal Specification:
ATTACHMENT METHODMOUNTING HOLE
BODY STYLEWEBBED, SOLID
BOLT HOLE CIRCLE NOMINAL DIAMETER13.380 INCHES AXIALLY THROUGH BODY, FIRST END
BOLT HOLE CIRCLE NOMINAL DIAMETER7.750 INCHES AXIALLY THROUGH HUB, FIRST END
BORE NOMINAL DIAMETER6.472 INCHES FIRST END
BORE NOMINAL DIAMETER9.520 INCHES SECOND END
BORE STYLEINVOLUTE SPLINE SECOND END
BORE STYLEPLAIN FIRST END
FACE NOMINAL WIDTH3.500 INCHES
HUB NOMINAL DIAMETER10.750 INCHES BOTH ENDS
HUB STYLE DESIGNATORPLAIN BOTH ENDS
III HARDNESS RATING55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM TEETH
III MATERIALSTEEL OVERALL
PITCH DIAMETER18.3333 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
PROPRIETARY CHARACTERISTICSPACS
MOUNTING HOLE NOMINAL DIAMETER0.672 INCHES AXIALLY THROUGH HUB, FIRST END
MOUNTING HOLE NOMINAL DIAMETER0.940 INCHES AXIALLY THROUGH BODY, FIRST END
MOUNTING HOLE NOMINAL THREAD SIZE0.422 INCHES AXIALLY THROUGH HUB, FIRST END
MOUNTING HOLE TYPE AND QUANTITY3 PLAIN AXIALLY THROUGH BODY, FIRST END
MOUNTING HOLE TYPE AND QUANTITY8 PLAIN AND 2 THREADED AXIALLY THROUGH HUB, FIRST END
MOUNTING HOLE THREAD SERIES DESIGNATORUNC AXIALLY THROUGH HUB, FIRST END
NOMINAL DISTANCE BETWEEN BODY FACE AND RECESSED HUB END0.780 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER19.411 INCHES
SPLINE PITCH DIAMETER9.3333 INCHES NOMINAL SECOND END
SPLINE QUANTITY56 SECOND END
STYLE DESIGNATORONE FLUSH HUB, ONE RECESSED HUB
TEETH QUANTITY55
TOOTH FORMSTANDARD


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