3020-00-001-2086 GEAR CLUSTER Index 3020-00-001-2089 GEAR,ANTIBACKLASH,SPUR

National Stock Number:
3020-00-001-2088

Federal Supply Class:
3020

National Item Identification Number:
000012088

Description:
GEAR CLUSTER

Detail:
A cylindrical item having a full 360 degree (6.282 radians) complement of teeth on two or more surfaces. It may be a one-piece casting or composed of two or more separate items firmly held together by welding, rivets, pins, or the like, to form a single unit. It is designed to mount on a shaft. For items consisting of a shaft with an integral complement(s) or gear teeth, see GEARSHAFT (as modified). Excludes GEAR SUBASSEMBLY, SPEED DECREASER.


Manufacturer Information:
C31008742688818KEARFOTT CORPORATION


Techincal Specification:
CONSTRUCTIONASSEMBLED
DESIGN TYPESPUR FIRST GEAR
DESIGN TYPESPUR SECOND GEAR
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
HUB STYLE DESIGNATOR3 STEPS FIRST END
HUB NOMINAL LENGTH0.125 INCHES BETWEEN SECOND AND THIRD GEAR
HUB NOMINAL LENGTH0.147 INCHES FIRST END
HUB NOMINAL LENGTH0.200 INCHES SECOND END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764 FED SPEC 2ND MATERIAL RESPONSE SECOND GEAR
MATERIALPLASTIC FIRST GEAR
MATERIALSTEEL COMP 416 SECOND GEAR
NOMINAL OUTSIDE DIAMETER0.296 INCHES FIFTH GEAR
NOMINAL OUTSIDE DIAMETER0.985 INCHES FOURTH GEAR
NOMINAL OVERALL LENGTH0.630 INCHES
PRECISION CLASSIFICATIONIS0 PRECISION CLASS 1 ALL GEARS
SURFACE TREATMENTPASSIVATE SECOND GEAR


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