Parts Manuals User Manual
Form P-CAUA, P/N 271166 R2, Page 9
Components of Belt Drives
The drive components include the belt, the motor pul-
ley, the blower pulley, and bushings, if required. The
table at the right identies the RPM range of the drive
option. Drive options are listed by AM No. in the Drive
Tables.
Belt Tension - Check belt tension. Proper belt tension
is important to the long life of the belt and motor. A
loose belt will cause wear and slippage. Too much
tension will cause excessive motor and blower bearing
wear.
If adjustment is required, adjust belt tension by means
of the adjusting screw on the motor base until the belt
can be depressed 1/2” to 3/4”. Tighten the lock nut on
the adjusting screw. Be sure the belt is aligned in the
pulleys.
Option RPM Range Option RPM Range Option Voltage
AM2 451-500 AM13 1001-1050 AK2 208V/1Ph/60Hz
AM3 501-550 AM14 1051-1100 AK3 230V/1Ph/60Hz
AM4 551-600 AM15 1101-1150 AK5 208V/3Ph/60Hz
AM5 601-650 AM16 1151-1200 AK6 230V/3Ph/60Hz
AM6 651-700 AM17 1201-1250 AK7 460V/3Ph/60Hz
AM7 701-750 AM18 1251-1300 AK8 575V/3Ph/60Hz
AM8 751-800 AM19 1301-1350
AM9 801-850 AM20 1351-1400
AM10 851-900 AM21 1401-1450
AM11 901-950 AM22 1451-1500
AM12 951-1000 AM23 1501-1550
Drive Table for OPEN MOTORS - Model CAUA
CAUA
Size
MOTOR
AM Nos. (See Key above.)
CODE 50 - Motor
Pulley
CODE 51 - Blower
Pulley
CODE 52 -
Belt
HP
Opt
No.
Voltage (See
Key page 8.)
P/N
Mfr
No.
Bore P/N Mfr No. Bore P/N
Mfr
No.
150
1/3 AL3 AK2,3,5,6,7
AM1, AM2, AM3, AM4 4074 1VL34 1/2” 19111 AK84 1” 50472 A45
AM5, AM6 4074 1VL34 1/2” 18797 AK64 1” 101412 A42
1/2 AL4 AK2,3,5,6,7 AM5, AM6, AM7, AM8 13580 1VL34 5/8” 18797 AK64 1” 101412 A42
3/4 AL5 AK2,3,5,6,7 AM7, AM8, AM9, AM10, AM11 13580 1VL34 5/8” 135202 AK54 1” 16019 A40
1 AL6 AK2,3,5,6,7 AM10, AM11, AM12, AM13 13580 1VL34 5/8” 105481 AK46 1” 105493 A39
1 AL6 AK8 AM10, AM11, AM12, AM13 110125 1VP34 7/8” 105481 AK46 1” 105493 A39
1-1/2 AL7 AK2,3,5,6,7
AM11, AM12, AM13, AM14, AM15,
AM16
7962 1VL40 5/8” 135202 AK54 1” 101412 A42
1-1/2 AL7 AK8
AM11, AM12, AM13, AM14, AM15,
AM16
106748 1VL40 7/8” 135202 AK54 1” 101412 A42
2 AL8
AK2,3,5,6,7,8
AM17 106748 1VL40 7/8” 135200 AK51 1” 50500 A41
200
1/3 AL3 AK2,3,5,6,7 AM3 4074 1VL34 1/2” 19111 AK84 1” 50472 A45
1/2 AL4 AK2,3,5,6,7 AM5, AM6, AM7 13580 1VL34 5/8” 105483 AK69 1” 50470 A43
3/4 AL5 AK2,3,5,6,7 AM6, AM7, AM8, AM9, AM10 13580 1VL34 5/8” 105482 AK56 1” 50500 A41
1 AL6 AK2,3,5,6,7 AM7, AM8, AM9, AM10, AM11 13580 1VL34 5/8” 105482 AK56 1” 50500 A41
1 AL6 AK8 AM7, AM8, AM9, AM10, AM11 110125 1VP34 7/8” 105482 AK56 1” 50500 A41
1-1/2 AL7 AK2,3,5,6,7 AM9, AM10, AM11, AM12, AM13, AM14 7962 1VL40 5/8” 115716 AK59 1” 50470 A43
1-1/2 AL7 AK8 AM9, AM10, AM11, AM12, AM13, AM14 106748 1VL40 7/8” 115716 AK59 1” 50470 A43
2 AL8 AK2,3,5,6,7,8 AM13, AM14, AM15, AM16 106748 1VL40 7/8” 135202 AK54 1” 101412 A42
250
1/3 AL3 AK2,3,5,6,7 AM3 4074 1VL34 1/2” 19111 AK84 1” 50473 A46
1/2 AL4 AK2,3,5,6,7 AM4, AM5, AM6, AM7 13580 1VL34 5/8” 135279 AK66 1” 101412 A42
3/4 AL5 AK2,3,5,6,7 AM6, AM7, AM8, AM9, AM10 13580 1VL34 5/8” 115716 AK59 1” 101412 A42
1 AL6 AK2,3,5,6,7 AM7, AM8, AM9, AM10, AM11 13580 1VL34 5/8” 135202 AK54 1” 50500 A41
1 AL6 AK8 AM7, AM8, AM9, AM10, AM11 110125 1VP34 7/8” 135202 AK54 1” 50500 A41
1-1/2 AL7 AK2,3,5,6,7
AM9, AM10, AM11, AM12 7962 1VL40 5/8” 18797 AK64 1 52966 A44
AM13, AM14, AM15 7962 1VL40 5/8” 135202 AK54 1” 101412 A42
1-1/2 AL7 AK8
AM9, AM10, AM11, AM12 106748 1VL40 7/8” 18797 AK64 1 52966 A44
AM13, AM14, AM15 106748 1VL40 7/8” 135202 AK54 1” 101412 A42
2 AL8 AK2,3,5,6,7,8 AM13, AM14, AM15, AM16. AM17, AM18 106748 1VL40 7/8” 111689 AK49 1” 50500 A41
3 AL9 AK2,3 AM17, AM18, AM19, AM20, AM21, AM22 7962 1VL40 5/8” 19111 AK84 1” 50474 A47
3 AL9 AK5,6,7,8 AM17, AM18, AM19, AM20, AM21, AM22 106748 1VL40 7/8” 19111 AK84 1” 50474 A47
300
1/3 AL3 AK2,3,5,6,7 AM3 4074 1VL34 1/2” 111609 AK99 1” 50475 A49
1/2 AL4 AK2,3,5,6,7 AM4, AM5 13580 1VL34 5/8” 19111 AK84 1” 50473 A46
3/4 AL5
AK2,3,5,6,7 AM5, AM6, AM7, AM8 13580 1VL34 5/8” 135279 AK66 1” 50470 A43
1 AL6 AK2,3,5,6,7 AM7, AM8, AM9, AM10, AM11, AM12 13580 1VL34 5/8” 135202 AK54 1” 16019 A40
1 AL6 AK8 AM7, AM8, AM9, AM10, AM11, AM12 110125 1VP34 7/8” 135202 AK54 1” 16019 A40
1-1/2 AL7 AK2,3,5,6,7 AM9, AM10, AM11, AM12, AM13, AM14 13580 1VL34 5/8” 111689 AK49 1” 16019 A40
1-1/2 AL7 AK8 AM9, AM10, AM11, AM12, AM13, AM14 110125 1VP34 7/8” 111689 AK49 1” 16019 A40
2 AL8 AK2,3,5,6,7,8
AM10, AM11, AM12, AM13 106748 1VL40 7/8” 115716 AK59 1” 50470 A43
AM14, AM15. AM16 106758 1VL44 7/8” 105482 AK56 1” 101412 A42