3020-00-406-6771 GEAR,SPUR Index 3020-00-406-6774 GEAR,ANTIBACKLASH,SPUR

National Stock Number:
3020-00-406-6773

Federal Supply Class:
3020

National Item Identification Number:
004066773

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:
534680-206096214RAYTHEON COMPANY
MAB550-60-250P201351SOUTHERN GEAR & MACHINE INC


Techincal Specification:
MATERIALALUMINUM ALLOY 2024 BODY
STEEL COMP 303 HUB
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE BODY
QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE HUB
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 WIDTH0.120 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END0.250 INCHES FIRST END
BORE STYLEPLAIN BOTH ENDS
BORE NOMINAL DIAMETER0.250 INCHES BOTH ENDS
HUB STYLE DESIGNATORPINNED FIRST END
HUB NOMINAL DIAMETER0.370 INCHES FIRST END


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