3020-00-690-2937 GEAR,SPUR Index 3020-00-690-2939 GEAR CLUSTER

National Stock Number:
3020-00-690-2938

Federal Supply Class:
3020

National Item Identification Number:
006902938

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:
40494-123667SMITHS DETECTION INC.
40494-182205BELFORT INSTRUMENT COMPANY
R875-B-7332657DORER ENGINEERING INC DBA O J RODGERS COMPANY


Techincal Specification:
ATTACHMENT METHODMOUNTING HOLE
BORE STYLEW/COUNTERBORE FIRST END
BORE NOMINAL DIAMETER0.156 INCHES FIRST END
CONSTRUCTIONASSEMBLED
COUNTERBORE NOMINAL DIAMETER0.1875 INCHES FIRST END
COUNTERBORE NOMINAL DEPTH0.125 INCHES FIRST END
DESIGN TYPESPUR FIRST GEAR
DESIGN TYPESPUR SECOND GEAR
HUB NOMINAL DIAMETER0.344 INCHES FIRST END
HUB NOMINAL DIAMETER0.375 INCHES BETWEEN FIRST AND SECOND GEAR
HUB STYLE DESIGNATORPLAIN BETWEEN FIRST AND SECOND GEAR
HUB STYLE DESIGNATORPLAIN FIRST END
HUB NOMINAL LENGTH0.016 INCHES FIRST END
HUB NOMINAL LENGTH0.219 INCHES BETWEEN FIRST AND SECOND GEAR
MATERIALCOPPER ALLOY SHAFT/HUB
MATERIALPLASTIC PHENOLIC FIRST GEAR
MATERIALSTEEL CORROSION RESISTING SECOND GEAR
NOMINAL OUTSIDE DIAMETER0.266 INCHES SECOND GEAR
NOMINAL OUTSIDE DIAMETER0.9687 INCHES FIRST GEAR
NOMINAL OVERALL LENGTH0.484 INCHES
SPECIAL FEATURESMTG HOLES 90 DEGS APART
SURFACE TREATMENTPASSIVATE SHAFT/HUB


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