3020-00-884-6088 GEAR,SPUR Index 3040-00-884-6090 DIFFERENTIAL GEAR UNIT

National Stock Number:
3020-00-884-6089

Federal Supply Class:
3020

National Item Identification Number:
008846089

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:
30138-8807421L3HARRIS INTERSTATE ELECTRONICS CORPORATION
30138-8881413BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.


Techincal Specification:
MATERIALALUMINUM ALLOY OVERALL
TEETH QUANTITY88
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUB
PITCH DIAMETER0.7330 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER0.750 INCHES
FACE NOMINAL WIDTH0.057 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.152 INCHES FIRST END
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.120 INCHES BOTH ENDS
HUB STYLE DESIGNATORSPLIT FIRST END
HUB NOMINAL DIAMETER0.155 INCHES FIRST END
ATTACHMENT METHODCLAMP
THE MANUFACTURERS DATA
MANUFACTURERS CODE07421
DESIGN CONTROL REFERENCE30138-88


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