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National Stock Number:
3020-01-247-0563
Federal Supply Class:
3020
National Item Identification Number:
012470563
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.
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Manufacturer Information:
| 7-317236803-9 | 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC | | 7-317236803-9 | 8V613 | THE BOEING COMPANY |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE III MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OR | | 40.0 ROCKWELL C MAXIMUM OVERALL | | CONSTRUCTION | ASSEMBLED | | DESIGN TYPE | SPUR ALL GEARS | | NOMINAL OUTSIDE DIAMETER | 4.134 INCHES FIRST GEAR | | 4.252 INCHES SECOND GEAR | | PRECISION CLASSIFICATION | QUALITY NUMBER 6 ALL GEARS | | BORE STYLE | INVOLUTE SPLINE BOTH ENDS | | SPLINE QUANTITY | 10 BOTH ENDS | | SPLINE PITCH DIAMETER | 0.5000 INCHES NOMINAL BOTH ENDS | | SPECIAL FEATURES | SPLINE DATA: BASE DIA.=0.54127; CLASS OF FIT=5; MAJOR DIA.=0.713; MINORDIA.=0.570; PIN DIA.=0.108; FORM DIA.=0.692; GEAR A DATA: AGMA QUALITY NO.=8; TEETH NO.=40; DIAMETRAL PITCH=10.160; PRESSURE ANGLE=20 DEG.; TOOTH FORM=INVOLUTE; PITCH DIA.=3.937; ROOT DIA.=3696; GEAR B DATA: AGMA QUALITY NO.=8; TEETH NO.=25; DIAMETRAL PITCH=6.350; PRESSURE ANGLE=20 DEG.; TOOTH FORM=INVOLUTE; PITCH DIA.=3.937; ROOT DIA. | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 8V613 | | DESIGN CONTROL REFERENCE | 7-317236803-9 |
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