3020-01-095-7780 GEAR,ANTIBACKLASH,SPUR Index 6625-01-095-7783 AMMETER

National Stock Number:
3020-01-095-7781

Federal Supply Class:
3020

National Item Identification Number:
010957781

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:
90105382577RAYTHEON COMPANY
901053-2C82577RAYTHEON COMPANY
9713-101012444DESIGNATRONICS INC PERFECT GEAR AND INSTRUMENT DIV
9733002753712WESTFIELD PRECISION PRODUCTS INC WEST COAST GEAR PRODUCTS DIV


Techincal Specification:
ATTACHMENT METHODCLAMP
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.125 INCHES BOTH ENDS
END NOMINAL DIAMETER0.188 INCHES FIRST END
END NOMINAL LENGTH0.203 INCHES FIRST END
FACE NOMINAL WIDTH0.105 INCHES
FIRST STEP NOMINAL DIAMETER0.375 INCHES FIRST END
FIRST STEP NOMINAL LENGTH0.016 INCHES FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE HUB
HUB STYLE DESIGNATOR1 STEP FIRST END
III MATERIALALUMINUM ALLOY 2024 BODY
III MATERIALSTEEL HUB
PITCH DIAMETER1.1240 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
PROPRIETARY CHARACTERISTICSPACS
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.221 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER1.156 INCHES
STYLE DESIGNATORPROTRUDING HUB
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TYPE 2 OR 4 FED SPEC SINGLE TREATMENT RESPONSE HUB
SURFACE TREATMENTANODIZE BODY
SURFACE TREATMENTPASSIVATE HUB
TEETH QUANTITY72
TOOTH FORMSTANDARD


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