3020-00-504-8246 GEAR,ANTIBACKLASH,SPUR Index 1240-00-504-8251 CELL,OPTICAL ELEMENT

National Stock Number:
3020-00-504-8247

Federal Supply Class:
3020

National Item Identification Number:
005048247

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:
2273634-000155972HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS


Techincal Specification:
ATTACHMENT METHODSLIP ON COLLAR
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.125 INCHES BOTH ENDS
CLAMPING SURFACE NOMINAL LENGTH0.156 INCHES FIRST END
FURNISHED ITEMS AND QUANTITY2 SETSCREW AND 1 COLLAR
FACE NOMINAL WIDTH0.062 INCHES
HUB NOMINAL DIAMETER0.188 INCHES FIRST END
HUB NOMINAL DIAMETER0.250 INCHES SECOND END
HUB STYLE DESIGNATORPLAIN SECOND END
HUB STYLE DESIGNATORSPLIT FIRST END
MATERIALCOPPER ALLOY FIRST GEAR
MATERIALCOPPER ALLOY SECOND GEAR
MATERIALSTEEL CORROSION RESISTING HUB
MATERIALSTEEL SPRING
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.203 INCHES FIRST END
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.016 INCHES SECOND END
NOMINAL OUTSIDE DIAMETER1.150 INCHES
PITCH DIAMETER1.1250 INCHES NOMINAL
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUBS
SURFACE TREATMENTPASSIVATE HUB
TEETH QUANTITY90
TOOTH FORMSTANDARD


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