3020-00-140-3628 GEAR,SPUR Index 3020-00-140-3630 GEAR,SPUR

National Stock Number:
3020-00-140-3629

Federal Supply Class:
3020

National Item Identification Number:
001403629

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:
709-1101-02007421L3HARRIS INTERSTATE ELECTRONICS CORPORATION


Techincal Specification:
ATTACHMENT METHODCLAMP
BORE NOMINAL DIAMETER0.187 INCHES BOTH ENDS
BORE STYLEPLAIN BOTH ENDS
CLAMPING SURFACE NOMINAL LENGTH0.251 INCHES FIRST END
FACE NOMINAL WIDTH0.105 INCHES
HUB NOMINAL DIAMETER0.250 INCHES FIRST END
HUB STYLE DESIGNATORSPLIT FIRST END
MATERIALALUMINUM ALLOY 2024 OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.316 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER0.861 INCHES
PITCH DIAMETER0.8323 INCHES MINIMUM AND 0.8333 INCHES MAXIMUM
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUB
SURFACE TREATMENTANODIZE OVERALL
TEETH QUANTITY60
TOOTH FORMSTANDARD


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