4320-00-244-9319 PUMP,ROTARY Index 3020-00-244-9321 CHAIN,SILENT

National Stock Number:
3020-00-244-9320

Federal Supply Class:
3020

National Item Identification Number:
002449320

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:
680844-166672GUPTILL GEAR CORP
680918-106481NORTHROP GRUMMAN SYSTEMS CORPORATION
680918-166672GUPTILL GEAR CORP


Techincal Specification:
ATTACHMENT METHODCLAMP
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.120 INCHES BOTH ENDS
CLAMPING SURFACE NOMINAL LENGTH0.140 INCHES FIRST END
FACE NOMINAL WIDTH0.107 INCHES
HUB STYLE DESIGNATORPLAIN SECOND END
HUB STYLE DESIGNATORSPLIT FIRST END
HUB NOMINAL DIAMETER0.141 INCHES FIRST END
HUB NOMINAL DIAMETER0.250 INCHES SECOND END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.064 INCHES SECOND END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.140 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER1.0625 INCHES
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8,T651 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 6061 OVERALL
PITCH DIAMETER1.0407 INCHES MINIMUM AND 1.0417 INCHES MAXIMUM
PRECISION CLASSIFICATIONQUALITY NUMBER 10
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUBS
SURFACE TREATMENTANODIZE OVERALL
TEETH QUANTITY100
TOOTH FORMSTANDARD


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