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 WIDTH0.313 INCHES NOMINAL D ENTRANCE
KEYWAY DEPTH0.156 INCHES NOMINAL D ENTRANCE
MATERIAL DOCUMENT AND CLASSIFICATIONB50R214,CLASS A,GENERAL ELECTRIC CO MFR REF SINGLE MATERIAL RESPONSE
MATERIALSTEEL
OVERALL LENGTH19.125 INCHES NOMINAL
SCREW THREAD SERIES DESIGNATORNC OR UNIFIED NATIONAL COARSE (UNC) SECOND SHAFT
SCREW THREAD SERIES DESIGNATORSPECIAL D ENTRANCE
SHAFT HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM
SHAFT LOCATIONBOTH ENDS OF WORM
SHAFT THREAD DIRECTIONRIGHT-HAND D ENTRANCE
SHAFT THREAD DIRECTIONRIGHT-HAND SECOND SHAFT
STRAIGHT UNTHREADED LENGTH0.875 INCHES NOMINAL TERMINAL BOX
STRAIGHT UNTHREADED LENGTH1.500 INCHES NOMINAL FIRST MORTISE
STRAIGHT UNTHREADED LENGTH1.688 INCHES NOMINAL RECEPTACLE PLATE
STRAIGHT UNTHREADED LENGTH2.813 INCHES NOMINAL ALL THREADED PORTIONS
STRAIGHT UNTHREADED SECTION DIAMETER0.750 INCHES NOMINAL TERMINAL BOX
STRAIGHT UNTHREADED SECTION DIAMETER1.1250 INCHES MINIMUM FIRST MORTISE
STRAIGHT UNTHREADED SECTION DIAMETER1.1255 INCHES MAXIMUM SECOND MORTISE
STRAIGHT UNTHREADED SECTION DIAMETER1.9690 INCHES MAXIMUM SEPARATING PIN
STRAIGHT UNTHREADED SECTION DIAMETER1.9670 INCHES MINIMUM ALL THREADED PORTIONS
STRAIGHT UNTHREADED SECTION DIAMETER1.9675 INCHES MAXIMUM FIRST STEP
STRAIGHT UNTHREADED SECTION DIAMETER1.9686 INCHES MINIMUM RECEPTACLE PLATE
TEETH HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM
THREAD LENGTH1.375 INCHES NOMINAL SECOND SHAFT
THREAD LENGTH0.875 INCHES NOMINAL D ENTRANCE
UNTHREADED SECTION KEYWAY DEPTH0.250 INCHES NOMINAL ALL THREADED PORTIONS
UNTHREADED SECTION KEYWAY WIDTH0.4940 INCHES MINIMUM ALL THREADED PORTIONS
UNTHREADED SECTION KEYWAY WIDTH0.4960 INCHES MAXIMUM FIRST STEP
WORM BODY LENGTH10.000 INCHES NOMINAL
WORM HELIX ANGLE11 DEG,41 MIN,56.24 SEC
WORM BODY TAPERED BEARING SURFACE ENDNOT PROVIDED
WORM OUTSIDE DIAMETER3.494 INCHES MINIMUM AND 3.496 INCHES MAXIMUM
WORM PITCH DIAMETER3.000 INCHES NOMINAL
WORM PRESSURE ANGLE IN DEG25.000
WORM THREAD DIRECTIONRIGHT-HAND
WORM THREAD LEAD1.9516 INCHES NOMINAL
WORM THREAD QUANTITY2
WORM THREAD SECTION LENGTH6.000 INCHES NOMINAL


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