3020-00-406-6773 GEAR,ANTIBACKLASH,SPUR Index 3020-00-406-6776 GEAR,SPUR

National Stock Number:
3020-00-406-6774

Federal Supply Class:
3020

National Item Identification Number:
004066774

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:
534682-206096214RAYTHEON COMPANY
ADR120-60P212444DESIGNATRONICS INC PERFECT GEAR AND INSTRUMENT DIV


Techincal Specification:
MATERIALALUMINUM ALLOY 2024 BODY
STEEL COMP 303 HUB
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY
SURFACE TREATMENTANODIZE BODY
PASSIVATE HUB
TEETH QUANTITY60
TOOTH FORMSTANDARD
PRESSURE ANGLE20.0000 DEGREES
STYLE DESIGNATORPROTRUDING HUB
PITCH DIAMETER0.6243 INCHES MINIMUM AND
0.6250 INCHES MAXIMUM
NOMINAL OUTSIDE DIAMETER0.645 INCHES
FACE NOMINAL WIDTH0.125 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.313 INCHES FIRST END
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.120 INCHES BOTH ENDS
HUB STYLE DESIGNATORSPLIT FIRST END
HUB NOMINAL DIAMETER0.186 INCHES FIRST END
ATTACHMENT METHODCLAMP


Click here to Register for Free 30-day Trial