4710-01-408-9986 TUBE ASSEMBLY,METAL Index 4710-01-408-9988 TUBE ASSEMBLY,METAL

National Stock Number:
3020-01-408-9987

Federal Supply Class:
3020

National Item Identification Number:
014089987

Description:
GEAR,ANTIBACKLASH,SPUR

Detail:
An item having one fixed gear and one free gear, both having the same complement of spur gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.


Manufacturer Information:
800895-173030HAMILTON SUNDSTRAND CORPORATION
800895-177445RTX CORPORATION


Techincal Specification:
BORE NOMINAL DIAMETER0.250 INCHES BOTH ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONHS2776 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NOMINAL OUTSIDE DIAMETER1.676 INCHES
PITCH DIAMETER1.6250 INCHES NOMINAL
PRESSURE ANGLE25.0000 DEGREES
SPECIAL FEATURESSECTOR GEAR, USED ON EEC FUEL CONTROL, F-117 ENGINE
TEETH QUANTITY8


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