8140-00-737-0452 PLATE,SPRING TENSION Index 3040-00-737-0456 GEARSHAFT,SPUR

National Stock Number:
3020-00-737-0455

Federal Supply Class:
3020

National Item Identification Number:
007370455

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:
913918318876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
SURFACE TREATMENTPASSIVATE HUB
TEETH QUANTITY144
TOOTH FORMSTANDARD
PRESSURE ANGLE14.5000 DEGREES
PRECISION CLASSIFICATIONQUALITY NUMBER 12
STYLE DESIGNATORPROTRUDING HUB
PITCH DIAMETER3.0000 INCHES NOMINAL
NOMINAL OVERALL LENGTH0.688 INCHES
FACE NOMINAL WIDTH0.252 INCHES
ATTACHMENT METHODCLAMP
THE MANUFACTURERS DATA
MANUFACTURERS CODE18876
DESIGN CONTROL REFERENCE9139183


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