Part Number
Part Number:
NSN:
NIIN:
Item Name:
SPROCKET WHEEL
Definition:
A TOOTHED WHEEL WHOSE TEETH OR SPROCKETS ARE DESIGNED TO BE ENGAGED WITH THE LINKS OF A PITCH CHAIN, TRACK, OR THE LIKE. IT IS USUALLY USED FOR TRANSMITTING POWER.
CAGE Information
| Code | Company |
|---|---|
| 97499 | BELL HELICOPTER TEXTRON INC. |
Federal Supply Class
Title
GEARS, PULLEYS, SPROCKETS, AND T
Inclusions:
INCLUDES POWER TRANSMISSION CHAIN; MATCHED GEAR SETS.
Exclusions:
EXCLUDES REDUCTION GEARS (FSC 3010).
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| BYFP | ASA STANDARD CHAIN NUMBER | B29.9-1958 |
| AXFH | SPLINE LENGTH | 0.450 INCHES NOMINAL |
| BYFN | TEETH QUANTITY PER ROW | 21 |
| BXSJ | LIGHTENING HOLE | NOT INCLUDED |
| ARJD | DESIGN FORM | PLAIN |
| ABSC | SPLINE MINOR DIAMETER | 0.8125 INCHES MINIMUM AND 0.8140 INCHES MAXIMUM |
| AQWM | GUIDE | INCLUDED |
| AXFG | SPLINE PRESSURE ANGLE IN DEG | 30.0 |
| MATL | MATERIAL | STEEL, QQ-S-763, CLASS 6, TYPE A OR CRES 410,QQ-S-763,CLASS 3,TYPE F |
| AQPL | FACE WIDTH | 0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM |
| ABHE | OUTSIDE DIAMETER | 1.230 INCHES MINIMUM AND 1.270 INCHES MAXIMUM |
| BMHW | GUIDE TYPE | GROOVE |
| BYFH | BELT/CHAIN/FILM SIZE FOR WHICH DESIGNED | SILENT CHAIN |
| AAUJ | SPLINE MAJOR DIAMETER | 0.9000 INCHES MINIMUM AND 0.9081 INCHES MAXIMUM |
| AXND | COUNTERBORE FEATURE | NOT INCLUDED |
| BYFL | TEETH ROW QUANTITY | 1 |
| STYL | STYLE DESIGNATOR | PLAIN |
| ABSA | SPLINE QUANTITY | 21 |
| SURF | SURFACE TREATMENT | PASSIVATED |
| BYGF | TOOTH PITCH | 0.188 INCHES NOMINAL |
| BYFS | BORE BEARING | NOT INCLUDED |
| ASBP | BORE TYPE | INVOLUTE SPLINE |
| BDTX | SPLINE PITCH DIAMETER | 0.4219 INCHES MINIMUM AND 0.8438 INCHES MAXIMUM |
| BDRB | GROOVE POSITION | IN CENTER |
| BYFQ | HARDNESS RATING TEST METHOD | NOT RATED |
| FEAT | SPECIAL FEATURES | TOOTH FORM PER ASA B29.9-1958,MAXCUMULATIVE PITCH ERR 0.001 |
| BSNP | SECURING METHOD | SLOTTED |
| AGJS | PITCH DIAMETER | 1.248 INCHES MINIMUM AND 1.268 INCHES MAXIMUM |
| AXHQ | GROOVE QUANTITY | 1 |