3020-00-406-4784 GEAR,ANTIBACKLASH,SPUR Index 3020-00-406-4786 GEAR,ANTIBACKLASH,SPUR

National Stock Number:
3020-00-406-4785

Federal Supply Class:
3020

National Item Identification Number:
004064785

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:
60878-782340L3HARRIS TECHNOLOGIES, INC.
60878-79Y580L3HARRIS TECHNOLOGIES, INC.
AB250-75P2-0-187301351SOUTHERN GEAR & MACHINE INC


Techincal Specification:
BACKLASH DESIGNATIONGRADE D
BORE NOMINAL DIAMETER0.187 INCHES BOTH ENDS
BORE STYLEPLAIN BOTH ENDS
FACE NOMINAL WIDTH0.125 INCHES
HUB NOMINAL DIAMETER0.375 INCHES FIRST END
HUB STYLE DESIGNATORPINNED FIRST END
MATERIALALUMINUM ALLOY OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.250 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER1.2031 INCHES
PITCH DIAMETER1.1718 INCHES NOMINAL
PRECISION CLASSIFICATIONQUALITY NUMBER 12
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUB
TEETH QUANTITY75
TOOTH FORMSTANDARD


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