3110-00-765-2220 BEARING,BALL,ANNULAR Index 1290-00-765-2222 MICROMETER

National Stock Number:
3040-00-765-2221

Federal Supply Class:
3040

National Item Identification Number:
007652221

Description:
WORM SHAFT

Detail:
A DRIVE SHAFT HAVING HELICAL THREAD(S) ON A PORTION OF ITS OUTER SURFACE, MACHINED BEARING SURFACE(S) AND FACILITIES FOR DRIVING (OTHER THAN A HUB) ON ONE OR BOTH ENDS OF SHAFT. DESIGNED TO MATE WITH A CAM, GEAR SECTOR, WORM WHEEL, ETC. INCLUDES ITEMS WITH BEARINGS. EXCLUDES ITEMS HAVING MORE THAN ONE WORM COMPLEMENT OF HELICAL THREADS, ITEMS WITH A SEPARATE COMPLEMENT OF GEAR TEETH, AND GEAR, WORM.


Manufacturer Information:
1290007652221A00AME.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE
1290007652221 SCY13E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE
765222119200US ARMY ARDEC RDECOM


Techincal Specification:
END SIMILARITYNOT IDENTICAL
FSC APPLICATION DATAELEVATION QUADRANT,FIRE CONTROL,ANTIAIRCRAFT
OVERALL LENGTH3.270 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING
SECTION SHAPESPHERICAL SECOND END, FIFTH PORTION
SHAFT HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
SHAFT LOCATIONBOTH ENDS OF WORM
SHAFT SECTION SIZE0.625 IN. ACROSS FLATS
WORM BODY LENGTH0.570 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE ENDNOT PROVIDED
WORM HELIX ANGLE3 DEG 39 MIN
WORM OUTSIDE DIAMETER0.563 INCHES NOMINAL
WORM PITCH DIAMETER0.500 INCHES NOMINAL
WORM THREAD DIRECTIONRIGHT-HAND
WORM PRESSURE ANGLE IN DEG29.000
WORM THREAD LEAD0.100 INCHES NOMINAL
WORM THREAD QUANTITY1
WORM THREAD SECTION LENGTH0.570 INCHES NOMINAL
STRAIGHT UNTHREADED LENGTH0.0469 INCHES NOMINAL SECOND END, THIRD PORTION
STRAIGHT UNTHREADED LENGTH0.0838 INCHES NOMINAL FIRST END, FIRST PORTION
STRAIGHT UNTHREADED LENGTH0.220 INCHES NOMINAL SECOND END, SECOND PORTION
STRAIGHT UNTHREADED LENGTH0.3593 INCHES NOMINAL FIRST END, THIRD PORTION
STRAIGHT UNTHREADED LENGTH0.469 INCHES NOMINAL FIRST END, SECOND PORTION
STRAIGHT UNTHREADED LENGTH0.730 INCHES NOMINAL SECOND END, FIRST PORTION
STRAIGHT UNTHREADED LENGTH0.7531 INCHES NOMINAL SECOND END, FOURTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.240 INCHES NOMINAL FIRST END, SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.2500 INCHES NOMINAL FIRST END, THIRD PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.2812 INCHES NOMINAL SECOND END, FOURTH PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.270 INCHES NOMINAL SECOND END, THIRD PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.3050 INCHES NOMINAL SECOND END, SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.320 INCHES NOMINAL FIRST END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.320 INCHES NOMINAL SECOND END, FIRST PORTION
SURFACE TREATMENTPASSIVATE
TEETH HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
UNTHREADED SECTION PIN HOLE DIAMETER0.1090 INCHES NOMINAL SECOND END, FOURTH PORTION


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