3040-00-098-0234, WORM SHAFT

National Stock Number:
3040-00-098-0234

Federal Supply Class:
3040

National Item Identification Number:
000980234

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:

45-524566-3	70898	BEECHCRAFT CORPORATION
45-524566-3	7EK50	TEXTRON AVIATION INC

Techincal Specification:

END SIMILARITY	NOT IDENTICAL
FSC APPLICATION DATA	TRIM TAB AILERON ACTUATOR ASSY,AIRCRAFT
OVERALL LENGTH	2.750 INCHES NOMINAL
MATERIAL	STEEL
SHAFT LOCATION	ONE END OF WORM
SHAFT HARDNESS RATING	34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
STRAIGHT UNTHREADED LENGTH	2.250 INCHES MINIMUM FIRST END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	0.2475 INCHES MINIMUM FIRST END, FIRST PORTION
STRAIGHT UNTHREADED SECTION DIAMETER	0.2485 INCHES MAXIMUM FIRST END, FIRST PORTION
WORM BODY LENGTH	0.500 INCHES NOMINAL
WORM HELIX ANGLE	17 DEG 33 MIN
WORM BODY TAPERED BEARING SURFACE END	NOT PROVIDED
WORM OUTSIDE DIAMETER	0.498 INCHES MINIMUM AND 0.499 INCHES MAXIMUM
WORM PITCH DIAMETER	0.439 INCHES MINIMUM AND 0.445 INCHES MAXIMUM
WORM PRESSURE ANGLE IN DEG	14.500
WORM THREAD DIRECTION	RIGHT-HAND
WORM THREAD LEAD	0.200 INCHES NOMINAL
WORM THREAD QUANTITY	2
WORM THREAD SECTION LENGTH	0.500 INCHES NOMINAL
TEETH HARDNESS RATING	34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
UNTHREADED SECTION PIN HOLE DIAMETER	0.0980 INCHES MINIMUM FIRST END, FIRST PORTION
UNTHREADED SECTION PIN HOLE DIAMETER	0.1000 INCHES MAXIMUM FIRST END, FIRST PORTION

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