3020-00-288-5803 GEAR,WORM WHEEL Index 3040-00-288-5805 WORM SHAFT

National Stock Number:
3040-00-288-5804

Federal Supply Class:
3040

National Item Identification Number:
002885804

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:
127D795-124446GENERAL ELECTRIC COMPANY
127D795PC124446GENERAL ELECTRIC COMPANY
D3180651PC180064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
END SIMILARITYNOT IDENTICAL
KEYWAY DEPTH0.156 INCHES NOMINAL SECOND END THIRD PORTION
KEYWAY WIDTH0.313 INCHES NOMINAL SECOND END THIRD PORTION
OVERALL LENGTH19.125 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONB50R214,CLASS A,GENERAL ELECTRIC CO MFR REF SINGLE MATERIAL RESPONSE
MATERIALSTEEL
SCREW THREAD SERIES DESIGNATORSPECIAL SECOND END THIRD PORTION
SCREW THREAD SERIES DESIGNATORNC OR UNIFIED NATIONAL COARSE (UNC) FIRST END THIRD PORTION
SHAFT HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM LOCATION NOT OTHERWISE SPECIFIED
SHAFT LOCATIONBOTH ENDS OF WORM
SHAFT THREAD DIRECTIONRIGHT-HAND FIRST END THIRD PORTION
SHAFT THREAD DIRECTIONRIGHT-HAND SECOND END THIRD PORTION
UNTHREADED SECTION KEYWAY DEPTH0.250 INCHES NOMINAL SECOND END SECOND PORTION
UNTHREADED SECTION KEYWAY WIDTH0.4940 INCHES MINIMUM AND 0.4960 INCHES MAXIMUM SECOND END SECOND PORTION
WORM BODY LENGTH10.000 INCHES NOMINAL
WORM BODY TAPERED BEARING SURFACE ENDNOT PROVIDED
WORM HELIX ANGLE11 DEG,41 MIN,56.24 SEC
WORM OUTSIDE DIAMETER3.494 INCHES MINIMUM AND 3.496 INCHES MAXIMUM
WORM PITCH DIAMETER3.000 INCHES NOMINAL
WORM THREAD DIRECTIONRIGHT-HAND
WORM PRESSURE ANGLE IN DEG25.000
WORM THREAD QUANTITY2
WORM THREAD LEAD1.9516 INCHES NOMINAL
WORM THREAD SECTION LENGTH6.000 INCHES NOMINAL
STRAIGHT UNTHREADED LENGTH0.875 INCHES NOMINAL FIRST END SECOND PORTION
STRAIGHT UNTHREADED LENGTH1.500 INCHES NOMINAL FIRST END FIRST PORTION
STRAIGHT UNTHREADED LENGTH1.688 INCHES NOMINAL SECOND END FIRST PORTION
STRAIGHT UNTHREADED LENGTH2.813 INCHES NOMINAL SECOND END SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER0.750 INCHES NOMINAL FIRST END SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER1.1250 INCHES MINIMUM AND 1.1255 INCHES MAXIMUM FIRST END FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER1.9670 INCHES MINIMUM AND 1.9675 INCHES MAXIMUM SECOND END SECOND PORTION
STRAIGHT UNTHREADED SECTION DIAMETER1.9686 INCHES MINIMUM AND 1.9690 INCHES MAXIMUM SECOND END FIRST PORTION
TEETH HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM
THREAD LENGTH0.875 INCHES NOMINAL SECOND END THIRD PORTION
THREAD LENGTH1.375 INCHES NOMINAL FIRST END THIRD PORTION


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