3020-01-030-8629 GEAR,HELICAL Index 5962-01-030-8631 MICROCIRCUIT,DIGITAL

National Stock Number:
3020-01-030-8630

Federal Supply Class:
3020

National Item Identification Number:
010308630

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:
S9713A-Z2H110AR00328DESIGNATRONICS INCORPORATED
Z2H-110-AP200328DESIGNATRONICS INCORPORATED
Z2HP110AP200328DESIGNATRONICS INCORPORATED


Techincal Specification:
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.125 INCHES BOTH ENDS
FACE NOMINAL WIDTH0.104 INCHES
HUB NOMINAL DIAMETER0.312 INCHES FIRST END
HUB STYLE DESIGNATORPINNED FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE HUB
MATERIALALUMINUM ALLOY 2024 BODY
MATERIALSTEEL COMP 303 HUB
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.221 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER1.166 INCHES
PITCH DIAMETER1.1451 INCHES MINIMUM AND 1.1458 INCHES MAXIMUM
PRECISION CLASSIFICATIONQUALITY NUMBER 12
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUB
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE BODY
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-STD-171,FINISH NO. 5.4.1 MIL SPEC SINGLE TREATMENT RESPONSE HUB
SURFACE TREATMENTANODIZE BODY
SURFACE TREATMENTPASSIVATE HUB
TEETH QUANTITY110
TOOTH FORMSTANDARD


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