3020-01-204-0669 GEAR,SPUR Index 6105-01-204-0671 MOTOR,ALTERNATING CURRENT

National Stock Number:
3020-01-204-0670

Federal Supply Class:
3020

National Item Identification Number:
012040670

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:
80517296214RAYTHEON COMPANY
805172-108596214RAYTHEON COMPANY
P15-3-85-C-Q12-.120000141ROLLER BEARING CO OF AMERICA, INC
SXABC27-85-Q12-.120023266SECS, INC.


Techincal Specification:
ATTACHMENT METHODCLAMP
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.120 INCHES BOTH ENDS
CLAMPING SURFACE NOMINAL LENGTH0.250 INCHES FIRST END
FACE NOMINAL WIDTH0.104 INCHES
HUB NOMINAL DIAMETER0.188 INCHES FIRST END
HUB STYLE DESIGNATORSPLIT FIRST END
MATERIALSTEEL OVERALL
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.280 INCHES FIRST END
NOMINAL OUTSIDE DIAMETER1.3590 INCHES
PITCH DIAMETER1.3281 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUB
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
TEETH QUANTITY85
TOOTH FORMSTANDARD


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