3020-01-337-4220 GEAR,HELICAL Index 3020-01-337-4222 GEAR,SPUR

National Stock Number:
3020-01-337-4221

Federal Supply Class:
3020

National Item Identification Number:
013374221

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:
214-040-046-10597499BELL TEXTRON INC


Techincal Specification:
BODY RECESS NOMINAL DEPTH0.525 INCHES FIRST END
BODY STYLEPLAIN, SOLID
BORE STYLEINVOLUTE SPLINE BOTH ENDS
BORE NOMINAL DIAMETER2.083 INCHES FIRST END
CRITICALITY CODE JUSTIFICATIONFEAT
FACE NOMINAL WIDTH1.245 INCHES
HELIX ANGLE30.0000 DEGREES
III MATERIALSTEEL OVERALL
PITCH DIAMETER4.5790 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
PROPRIETARY CHARACTERISTICSPACS
NOMINAL OVERALL LENGTH1.770 INCHES
NOMINAL OUTSIDE DIAMETER4.750 INCHES
SPECIAL FEATURESFLIGHT SAFETY CRITICAL
SPLINE PITCH DIAMETER2.0000 INCHES NOMINAL FIRST END
SPLINE QUANTITY24 FIRST END
STYLE DESIGNATORBELL SHAPE BODY, HUBLESS
TEETH QUANTITY41
TEETH TYPESINGLE HELIX
TOOTH DIRECTIONLEFT


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