3020-00-018-6572 GEAR,ANTIBACKLASH,SPUR Index 3020-00-018-6574 GEAR,ANTIBACKLASH,SPUR

National Stock Number:
3020-00-018-6573

Federal Supply Class:
3020

National Item Identification Number:
000186573

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:
134006510001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
1340065-12610001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
L310014-34636090LOCKHEED MARTIN LIBRASCOPE CORP


Techincal Specification:
ATTACHMENT METHODCLAMP
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.188 INCHES BOTH ENDS
CLAMPING SURFACE NOMINAL LENGTH0.265 INCHES FIRST END
FACE NOMINAL WIDTH0.125 INCHES
HUB NOMINAL DIAMETER0.248 INCHES FIRST END
HUB STYLE DESIGNATORSPLIT FIRST END
MATERIALALUMINUM ALLOY 2024 OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.297 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER1.331 INCHES
PITCH DIAMETER1.3125 INCHES NOMINAL
PRECISION CLASSIFICATIONQUALITY NUMBER 12
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUB
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTANODIZE OVERALL
TEETH QUANTITY126
TOOTH FORMSTANDARD


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