3040-00-657-8520 SHAFT,SHOULDERED Index 2520-00-657-8528 RACE

National Stock Number:
3020-00-657-8527

Federal Supply Class:
3020

National Item Identification Number:
006578527

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:
0E31192392ALLIS-CHALMERS CORP
657852719207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
ATTACHMENT METHODMOUNTING HOLE
BODY STYLEWEBBED, SOLID
BOLT HOLE CIRCLE NOMINAL DIAMETER4.750 INCHES AXIALLY THROUGH HUB, FIRST END
BORE NOMINAL DIAMETER3.876 INCHES BOTH ENDS
BORE STYLEPLAIN BOTH ENDS
COUNTERBORE NOMINAL DEPTH0.625 INCHES BOTH ENDS
FACE NOMINAL WIDTH1.750 INCHES
HARDNESS RATING58.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM OVERALL
HELIX ANGLE24.7839 DEGREES
HUB NOMINAL DIAMETER6.688 INCHES FIRST END
HUB NOMINAL DIAMETER6.688 INCHES SECOND END
HUB STYLE DESIGNATORPLAIN BOTH ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONED STD 66,AISI/SAE 8620H FED STD 5TH MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 8620H OVERALL
MOUNTING HOLE NOMINAL DIAMETER0.562 INCHES AXIALLY THROUGH HUB, FIRST END
MOUNTING HOLE TYPE AND QUANTITY6 PLAIN AXIALLY THROUGH HUB, FIRST END
NOMINAL OUTSIDE DIAMETER9.650 INCHES
PITCH DIAMETER9.2520 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORFLUSH HUB
TEETH QUANTITY42
TEETH TYPESINGLE HELIX
TOOTH DIRECTIONRIGHT
TOOTH FORMSTANDARD


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