3020-01-251-4521 GEAR,SPUR Index 2920-01-251-4523 ARMATURE,MOTOR

National Stock Number:
3020-01-251-4522

Federal Supply Class:
3020

National Item Identification Number:
012514522

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:
RYLC 36905624GE AVIATION SYSTEMS LLC


Techincal Specification:
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-T-570 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND
50.0 ROCKWELL C MAXIMUM OVERALL
CONSTRUCTIONASSEMBLED
DESIGN TYPESPUR ALL GEARS
NOMINAL OUTSIDE DIAMETER0.234 INCHES FIRST GEAR
0.734 INCHES SECOND GEAR
NOMINAL OVERALL LENGTH1.359 INCHES
HUB STYLE DESIGNATOR1 STEP SECOND END
1 STEP BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL LENGTH0.216 INCHES SECOND END
0.835 INCHES BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL DIAMETER0.124 INCHES SECOND END
0.250 INCHES BETWEEN FIRST AND SECOND GEAR
SPECIAL FEATURES1ST GEAR DATA: 12 TEETH; DIAMETRAL PITCH 64; PRESSURE ANGLE 20.0000; PITCH DIA. 0.1875; 2ND GEAR DATA: 45 TEETH; DIAMETRAL PITCH 64; PRESSURE ANGLE 20.0000; PITCH DIA. 0.7031
THE MANUFACTURERS DATA
MANUFACTURERS CODE05624
DESIGN CONTROL REFERENCERYLC 369


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