3020-01-149-7940 GEAR,SPUR Index 3020-01-149-7942 GEAR CLUSTER

National Stock Number:
3020-01-149-7941

Federal Supply Class:
3020

National Item Identification Number:
011497941

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:
3020PL07393719009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
862680711862GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT
86268077X677GENERAL MOTORS LLC


Techincal Specification:
DESIGN TYPEHELICAL ALL GEARS
BORE STYLEINVOLUTE SPLINE BOTH ENDS
BORE NOMINAL DIAMETER1.412 INCHES BOTH ENDS
CONSTRUCTIONSOLID
HARDNESS RATING79.0 ROCKWELL A MINIMUM OVERALL AND 82.5 ROCKWELL A MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66AISI/SAE5140H FED STD SINGLE MATERIAL RESPONSE OVERALL
HUB NOMINAL DIAMETER1.720 INCHES BETWEEN FIRST AND SECOND GEAR
HUB NOMINAL LENGTH0.515 INCHES BETWEEN FIRST AND SECOND GEAR
HUB STYLE DESIGNATORPLAIN BETWEEN FIRST AND SECOND GEAR
III MATERIALSTEEL COMP 5140H OVERALL
PROPRIETARY CHARACTERISTICSPACS
NOMINAL OUTSIDE DIAMETER2.141 INCHES ALL GEARS
NOMINAL OVERALL LENGTH2.385 INCHES
SPECIAL FEATURESBORE SEPARATED WITH GROOVE 0.515 IN.
SPLINE PITCH DIAMETER1.3333 INCHES NOMINAL BOTH ENDS
SPLINE QUANTITY32 BOTH ENDS


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