3020-01-287-4128 GEAR,BEVEL Index 3020-01-287-4130 GEAR,HELICAL

National Stock Number:
3020-01-287-4129

Federal Supply Class:
3020

National Item Identification Number:
012874129

Description:
GEAR,BEVEL

Detail:
A gear in the form of a frustum of a cone, with straight, skewed, or curved teeth, cut on the external face. See also GEAR, ANTIBACKLASH, BEVEL.


Manufacturer Information:
9C820511083CATERPILLAR INC


Techincal Specification:
ATTACHMENT METHODMOUNTING HOLE
BODY RECESS NOMINAL DEPTH21.8 MILLIMETERS FIRST END
BODY STYLEPLAIN, SOLID
BOLT HOLE CIRCLE NOMINAL DIAMETER279.4 MILLIMETERS AXIALLY THROUGH BODY, SECOND END
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER247.2 MILLIMETERS BOTH ENDS
FACE NOMINAL WIDTH58.0 MILLIMETERS
HARDNESS RATING55.0 ROCKWELL C MINIMUM TEETH AND 65.0 ROCKWELL C MAXIMUM TEETH
HARDNESS RATING59.0 ROCKWELL C NOMINAL BODY
III MATERIALSTEEL OVERALL
PITCH DIAMETER370.0 MILLIMETERS NOMINAL
PITCH ANGLE74.6237 DEGREES
PRESSURE ANGLE22.5000 DEGREES
PROPRIETARY CHARACTERISTICSPACS
MOUNTING HOLE NOMINAL THREAD SIZE0.500 INCHES AXIALLY THROUGH BODY, SECOND END
MOUNTING HOLE TYPE AND QUANTITY24 THREADED AXIALLY THROUGH BODY, SECOND END
MOUNTING HOLE THREAD SERIES DESIGNATORUNF AXIALLY THROUGH BODY, SECOND END
NOMINAL OUTSIDE DIAMETER372.6 MILLIMETERS
NOMINAL OVERALL LENGTH45.3 MILLIMETERS
STYLE DESIGNATORSIDE FACE, HUBLESS
TEETH QUANTITY40
TEETH TYPESPIRAL


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