6605-00-866-9869 SERVO ASSEMBLY Index 3020-00-866-9871 GEAR,ANTIBACKLASH,SPUR

National Stock Number:
3020-00-866-9870

Federal Supply Class:
3020

National Item Identification Number:
008669870

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:
188825-00081413BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.


Techincal Specification:
MATERIALSTEEL COMP 303S HUB
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720,CONDA MIL SPEC SINGLE MATERIAL RESPONSE HUB
SURFACE TREATMENTPASSIVATE HUB
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,FINISH E300 FED STD SINGLE TREATMENT RESPONSE HUB
TEETH QUANTITY130
TOOTH FORMSTUB
PRESSURE ANGLE20.0000 DEGREES
PRECISION CLASSIFICATIONQUALITY NUMBER 12
STYLE DESIGNATORPROTRUDING HUB
PITCH DIAMETER1.3542 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER1.375 INCHES
FACE NOMINAL WIDTH0.177 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.165 INCHES FIRST END
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.125 INCHES BOTH ENDS
HUB STYLE DESIGNATORSPLIT FIRST END
HUB NOMINAL DIAMETER0.187 INCHES FIRST END
CLAMPING SURFACE NOMINAL LENGTH0.165 INCHES FIRST END
ATTACHMENT METHODCLAMP
THE MANUFACTURERS DATA
MANUFACTURERS CODE81413
DESIGN CONTROL REFERENCE188825-000


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