2815-00-441-4867 RING SET,PISTON Index 4933-00-441-4870 MODIFICATION KIT,MU

National Stock Number:
3020-00-441-4869

Federal Supply Class:
3020

National Item Identification Number:
004414869

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:
917694318876U S ARMY AVIATION AND MISSILE COMMAND
P4-5-184S00141ROLLER BEARING CO OF AMERICA, INC


Techincal Specification:
BORE NOMINAL DIAMETER0.500 INCHES BOTH ENDS
BORE STYLEPLAIN BOTH ENDS
FACE NOMINAL WIDTH0.104 INCHES
HUB STYLE DESIGNATORPINNED FIRST END
HUB STYLE DESIGNATORTHREADED SECOND END
HUB NOMINAL DIAMETER0.500 INCHES FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE HUB
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-268,COND T4 FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIALALUMINUM ALLOY BODY
MATERIALSTEEL COMP 303S OR STEEL COMP 303SE HUB
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.234 INCHES SECOND END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.281 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER2.583 INCHES
PITCH DIAMETER2.5540 INCHES MINIMUM AND 2.5550 INCHES MAXIMUM
PRECISION CLASSIFICATIONQUALITY NUMBER 10
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUBS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE BODY
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE HUB
SURFACE TREATMENTPASSIVATE HUB
SURFACE TREATMENTANODIZE BODY
TEETH QUANTITY184
TOOTH FORMSTANDARD


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