3020-00-287-7267 GEAR,HELICAL Index 3020-00-287-7274 GEAR,SPUR

National Stock Number:
3020-00-287-7271

Federal Supply Class:
3020

National Item Identification Number:
002877271

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.


Techincal Specification:
BODY STYLEPLAIN, SOLID
BORE NOMINAL DIAMETER1.875 INCHES BOTH ENDS
BORE STYLEW/ KEYWAY BOTH ENDS
FACE NOMINAL WIDTH0.562 INCHES
HUB STYLE DESIGNATORPLAIN BOTH ENDS
HUB NOMINAL DIAMETER2.500 INCHES FIRST END
HUB NOMINAL DIAMETER2.938 INCHES SECOND END
KEYWAY NOMINAL WIDTH0.156 INCHES BOTH ENDS
MATERIALSTEEL OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.062 INCHES SECOND END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.093 INCHES FIRST END
NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM1.031 INCHES BOTH ENDS
NOMINAL OUTSIDE DIAMETER4.969 INCHES
PITCH DIAMETER4.7190 INCHES NOMINAL
PRESSURE ANGLE14.5000 DEGREES
STYLE DESIGNATORPROTRUDING HUBS
TEETH QUANTITY38
TOOTH FORMSTANDARD


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