4320-00-421-4454 SHAFT SEAL SUB ASSE Index 3020-00-421-4457 GEAR,ANTIBACKLASH,SPUR

National Stock Number:
3020-00-421-4456

Federal Supply Class:
3020

National Item Identification Number:
004214456

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:
20487109017EDO
20487193322GE AVIATION SYSTEMS LLC DBA GE AVIATION


Techincal Specification:
TEETH QUANTITY50
STYLE DESIGNATORPROTRUDING HUB
PITCH DIAMETER0.7812 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER0.8125 INCHES
BORE STYLEPLAIN BOTH ENDS
HUB STYLE DESIGNATORTHREADED FIRST END


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