MAKE YOUR FAN MOTORS LAST LONGER WITH THE RIGHT-SIZED PULLEYS

Did you know that even a small difference in pulley size can make a big difference in the overall life of your replacement fan motors? Here’s a good rule of thumb: if you increase the diameter of the pulley by 10%, you simultaneously increase the power needed to drive the fan by 33%. (For a motor pulling 4 amps with the right-sized pulley, the same motor would pull 5.32 amps with a pulley that’s 10% larger.) Over time, this increase in amperage could overload the motor to the point of failure.

We’ve compiled the information below to help you minimize headaches and maximize the life of your 1hp and 1.5hp replacement fan motors. Simply scroll to the brand of your particular exhaust fan and search the table for the correct drive and axle pulley sizes. If you don’t see your model number, be sure to check the Archived Information as well. If you have any questions, feel free to call 864-402-4MTA for more information.

Acme Fans

MODELSIZEHPDRIVEAXLE
BDR48J2-C 48" 1 AK32 AK104
BDR48J2L 48" 1 AK34 AK114
BDRB48J-C3 48" 1 AK34 AK114
BDRB48K-C3 48" 1.5 AK34 AK114
DC48J-C 48" 1 3.3" o.d. 14.3" o.d.
DDPG48J-C 48" 1 AK30 AK114
DDPS48J-C 48" 1 AK30 AK114
DDPG50J-C 50" 1 AK26 AK94
DDPG50J-C 50" 1 AK26 AK94
DDPG50JL-C 50" 1 AK22 AK94
DDPS50J-C 50" 1 AK22 AK94
BDR54J 54" 1 AK34 AK144
BDR54J1 54" 1 AK39 AK144
BDR54J-C 54" 1 AK34 AK144
BDR54JL-C 54" 1 AK27 AK144
BDR54K-C 54" 1.5 3.8" o.d. 13.3" o.d.
BDR54KT-C 54" 1.5 4.5" o.d. 15.3" o.d.
BDRV54J1-C2 54" 1 AK34 13.4" o.d.
BDRV54J1-C3 54" 1 AK34 13.3" o.d.
BDRV54J2-C2 54" 1 AK34 13.4" o.d.
BDRV54J2-C3 54" 1 AK34 13.3" o.d.
BDRV54J-C2 54" 1 AK32 13.4" o.d.
BDRV54J-C3 54" 1 AK32 13.3" o.d.
BDRV54J-CB 54" 1 AK34 AK134
BDRV54JL-C2 54" 1 AK30 14.3" o.d.
BDRV54JL-C3 54" 1 AK30 14.3" o.d.
BDRV54K-C2 54" 1.5 AK39 AK134
BDRV54K-C3 54" 1.5 AK39 AK134
BDRV54K-CB 54" 1.5 AK39 AK134
DC54J-C 54" 1 AK28 AK134
DC54JL-C 54" 1 AK23 AK134
DC54K-C 54" 1.5 AK34 AK154
DC54K-C 54" 1.5 AK34 AK154
DDPGV54J-C 54" 1 AK34 AK134
DDPGV54K-C 54" 1.5 AK39 AK134
DDPSV54J-C 54" 1 AK34 AK134
DDPSV54K-C 54" 1.5 AK39 AK134


Aerotech Fans

MODELSIZEHPDRIVEAXLE
AT4815Z1CA 48" 1.5 3.8" o.d. 10.3" o.d.
AT4815Z1CP 48" 1.5 AK39 AK104
AT481Z1CA 48" 1 3.4" o.d. 10.3" o.d.
AT481Z1CP 48" 1 3.4" o.d. 10.3" o.d.
AT481Z2CA 48" 1 3.3" o.d. 10.3" o.d.
AT481Z2CP 48" 1 3.3" o.d. 10.3" o.d.
AX481T1CJ 48" 1 AK34 10.3" o.d.
AX481T1CP 48" 1 AK34 AK104
GB4815T1P 48" 1.5 AK41 AK104
GB481T1P 48" 1 AK39 AK104
WF5015T1CJ 50" 1.5 AK41 13" o.d.
WF5015T1CP 50" 1.5 AK45 13" o.d.
WF5015T1CY 50" 1.5 AK46 13" o.d.
WF5015V1CD 50" 1.5 AK41 13" o.d.
WF501T1CJ 50" 1 AK35 13" o.d.
WF501T1CP 50" 1 AK39 13" o.d.
WF501T1CY 50" 1 AK39 13" o.d.
WF501V1CD 50" 1 AK35 13" o.d.
AX5115T1CP 51" 1.5 MA35 AK104
AX511T1CP 51" 1 MA35 11" o.d.
VX5115F1CD 51" 1.5 AK34 AK104
VX5115F1CEP 51" 1.5 AK34 AK104
VX5115F1CER 51" 1.5 AK34 AK104
VX5115F1CP 51" 1.5 AK34 AK104
VX5115F1CR 51" 1.5 AK34 AK104
VX5115F1CT 51" 2 AK34 AK104
VX5115F1GP 51" 1.5 AK34 AK104
VX5115F1GR 51" 1.5 AK34 AK104
VX511F1CD 51" 1 AK34 AK112
VX511F1CEP 51" 1 AK34 AK112
VX511F1CER 51" 1 AK34 AK112
VX511F1CP 51" 1 AK34 AFD112
VX511F1CT 51" 1 AK34 AK112
VX511F1GP 51" 1 AK34 AK112
VX511F1GR 51" 1 AK34 AK112
VX512F1CT 51" 2 AK39 AK104
WF5415T1CEJ 54" 1.5 BC46 13" o.d.
WF5415T1CEP 54" 1.5 BC46 13" o.d.
WF5415T1CJ 54" 1.5 BC46 13" o.d.
WF5415T1CP 54" 1.5 BC46 13" o.d.
WF5415V1CD 54" 1.5 AK43 13" o.d.
WF541T1CEJ 54" 1 AK41 13" o.d.
WF541T1CEP 54" 1 AK41 13" o.d.
WF541T1CJ 54" 1 AK41 13" o.d.
WF541T1CP 54" 1 AK41 13" o.d.
WF541V1CD 54" 1 AK41 13" o.d.
WF542T1CJ 54" 2 AK46 13.1" o.d.
WF542T1CP 54" 2 AK46 13" o.d.
WF542V1CD 54" 2 AK46 13" o.d.
WM5415F1CB 54" 1.5 AK43 13" o.d.
WM5415G1CD 54" 1.5 AK43 13" o.d.
WM541F1CB 54" 1 AK41 13" o.d.
WM541G1CD 54" 1 AK41 13" o.d.


Chore-Time Fans

MODELSIZEHPDRIVEAXLE
38264-4822 48" 1.5 MA33 AK94
38264-4825 48" 1.5 MA33 AK94
38434-4820 + shutter 48" 1 AK28 8.5" o.d.
47898-4822 48" 1.5 3.3" o.d. 8.3" o.d.
47898-4825 48" 1.5 3.3" o.d. 8.3" o.d.
48318-212 48" 1.5 AK30 AK94
48318-215 48" 1.5 AK30 AK94
48318-225 48" 1 AK30 AK94
48318-235 48" 1 AK27 AK84
49451-21 48" 1.5 AK30 AK94
49451-22 48" 2.5 AK30 AK94
49451-23 48" 1.5 AK27 AK84
49515-21 48" 1.5 AK30 AK94
49515-22 48" 1 AK30 AK94
49515-23 48" 1 AK27 AK84
48319-215 52" 1.5 AK30 AK94
48319-225 52" 1.5 AK30 AK94
49511-21 52" 1.5 AK30 AK94
49511-22 52" 1.5 AK30 AK94
49519-21 52" 1.5 AK30 AK94
49519-22 52" 1.5 AK30 AK94
49519-42 variable speed 52" 1.5 AK30 9.3" o.d.
49740-21 52" 1.5 AK30 AK84
49740-22 52" 1.5 AK30 AK94
52157-21 54" 1.5 AK30 AK94
52157-22 54" 1.5 AK30 AK94


Cool Air Fans

MODELSIZEHPDRIVEAXLE
MNCFB48L 48" 1 AK39 15.5" o.d.
MNCFBC48L 48" 1 AK39 15.5" o.d.
MNCFBE48L 48" 1 AK34 15.5" o.d.
MNCFBEC48L 48" 1 AK34 15.5" o.d.
FGBC52L 53" 1 AK27 9.5"
FGBC52M 53" 1.5 MA30 9.5"
FGBCE52L 53" 1 AK25 9.5"
FGBRE52M 53" 1.5 AK28 9.8" o.d.
FGBRE52M 53" 1.5 AK28 9.8" o.d.
MNBC52L 53" 1 3.5" o.d. 11.6" o.d.
MNBC52LE 53" 1 3.3 o.d. 11.6" o.d.
MNBCC52L 53" 3.5" o.d. 11.6" o.d.
MNBCC52LE 53" 1 3.3" o.d. 11.6" o.d.
MNBCC52M 53" 1.5 3.8" o.d. 11.6" o.d.
MNBCDD52L 53" 1 2.7" o.d. 9.5" o.d.
MNBCDD52L 53" 1 2.7" o.d. 9.5" o.d.
MNBCDD52LE 53" 1 2.6" o.d. 9.5" o.d.
MNBCDD52LE 53" 1 2.6" o.d. 9.5" o.d.
MNBCDD52M 53" 1 3.0" o.d. 9.5" o.d.
MNCF52L 53" 1 AK34 15.5" o.d.
MNCF52M1P 53" 1.5 AK39 15.5" o.d.
MNCFC52L 53" 1 AK34 15.6" o.d.
MNCFC52M 53" 1.5 AK39 15.6" o.d.
MNCFE52L 53" 1 AK30 15.5" o.d.
MNCFEC52L 53" 1 AK32 15.6" o.d.
MNEF52L 53" 1 AK26 9.5"
MNEF52M 53" 1.5 AK28 9.5"
MNEFC52L 53" 1 AK26 9.5"
MNEFC52L 53" 1 AK26 9.5"
MNEFC52M 53" 1.5 AK28 9.5"
MNEFDD52L 53" 1 MA33 11.4" o.d.
MNEFDD52M 53" 1.5 MA35 11.4" o.d.
MNEFE52L 53" 1 MA25 9.5"
MNEFEC52L 53" 1 MA25 9.5"
NBCID52L-SQ 53" 1 MA33 11.4" o.d.
NBCID52M-SQ 53" 1.5 AK39 11.4" o.d.
NCFID52L-SQ 53" 1 AK34 15.5" o.d.
NCFID52M-SQ 53" 1.5 MA38 15.5" o.d.
NEFID52L-SQ 53" 1 MA33 11.4 o.d.
NEFID52M-SQ 53" 1.5 MA35 11.4 o.d.
FGXM54L 54" 1 3.95" o.d. 12.3" o.d.
FGXM54M 54" 1.5 4.3" o.d. 12.3" o.d.


Hired Hand Fans

MODELSIZEHPDRIVEAXLE
6603-0131 48" 1.5 3.5" o.d. 10.3" o.d.
6603-6010 48" 1 3.8" o.d. 10.3" o.d.
6603-6010 48" 1 3.8" o.d. 10.3" o.d.
6603-6020 48" 1 4.0" o.d. 10.3" o.d.
6603-6020 48" 1 4.0" o.d. 10.3" o.d.
6603-6020 48" 1 4.0" o.d. 10.3" o.d.
6603-6025 48" 1 4.0" o.d. 10.3" o.d.
6603-6025 48" 1 4.0" o.d. 10.3" o.d.
6603-6067 48" 1 3.8" o.d. 10.3" o.d.
6603-6067 48" 1 3.8" o.d. 10.3" o.d.
6603-7021 48" 1 3.5" o.d. 10.3" o.d.
6603-7021 48" 1 3.5" o.d. 10.3" o.d.
6603-7031 48" 1 3.5" o.d. 10.3" o.d.
6603-7031 48" 1 3.5" o.d. 10.3" o.d.
6603-0606 52" 1 3.5" o.d. 10.3" o.d.
6603-0606 52" 1 3.5" o.d. 10.3" o.d.
6603-6500 52" 1 3.8" o.d. 10" o.d.
6603-6502 52" 1 MA35 10" o.d.
6603-6503 52" 1.5 AK41 10" o.d.
6603-6505 52" 1.5 MA35 10" o.d.
6603-7041 52" 1 3.5" o.d. 10.3" o.d.
6603-7041 52" 1 3.5" o.d. 10.3" o.d.
6603-7051 52" 1 3.8" o.d. 10.3" o.d.
6603-7051 52" 1 3.8" o.d. 10.3" o.d.
6603-7401 52" 1 3.8" o.d. 10.3" o.d.
6603-7401 52" 1 3.8" o.d. 10.3" o.d.
6603-7401 52" 1 3.8" o.d. 10.3" o.d.
6603-7401 52" 1 3.8" o.d. 10.3" o.d.
6603-7082 54" 1.5 3.4" o.d. 10.3" o.d.
6603-7090 54" 1 3.5" o.d. 10.3" o.d.
6603-7092 54" 1 4.0" o.d. 10.3" o.d.


ARCHIVE INFORMATION

ACME FANS

MODEL SIZE HP DRIVE AXLE
BDR48J-A 48" 1 AK30 AK114
BDR48J-A 48" 1 AK30 AK114
BDR48J-A 48" 1 AK30 AK114
BDR48J-AL 48" 1 2.8" o.d. 10.9" o.d.
BDR48J-AL 48" 1 2.8" o.d. 10.9" o.d.
BDR48J-C 48" 1 3.3" 14.3"
BDR48J-C 48" 1 AK30 AK114
BDR48J-C 48" 1 AK27 AL114
BDR48JL-A 48" 1 AK30 AL114
BDR48JL-C 48" 1 AK27 AL114
BDR48JL-C 48" 1 AK27 AL114
BDR48K-A 48" 1.5 AK34 ALK114
BDR48K-C 48" 1.5 AK34 ALK114
DC48J-A 48" 1 3.3" o.d. 14.3" o.d.
DC48J-A 48" 1 3.3" 14.3"
DC48J-C 48" 1 3.3" 14.3"
DDPG48J-C 48" 1 3.0" o.d. 10.9"
DDPG48J-C 48" 1 3.0" o.d. 10.9"
DDPG48J-C 48" 1 AK34 AKL114
DDPG48K-C 48" 1.5 3.5" o.d. 11" o.d.
DDPS48J-C 48" 1 3.0" o.d. 10.9"
DDPS48J-C 48" 1 3.0" o.d. 10.9"
DDPS48J-C 48" 1 AK34 AL114
DDPS48K-C 48" 1.5 3.5" o.d. 11" o.d.
DDPG50J1-C 50" 1 AK26 AL94
DDPG50J1-CR 50" 1 AK26 AK94
DDPG50J-C 50" 1 AK25 AK94
DDPG50J-C 50" 1 AK25 AK94
DDPG50JL-C 50" 1 AK23 AL94
DDPG50K-C 50" 1.5 AK28 AL94
DDPS50J1-C 50" 1 AK26 AK94
DDPS50J1-CR 50" 1 AK26 AK94
DDPS50J-C 50" 1 AK25 AL94
DDPS50J-C 50" 1 AK25 AK94
DDPS50JL-C 50" 1 AK23 AL94
DDPS50K-C 50" 1.5 AK28 AL94
AEROTECH FANS

MODEL SIZE HP DRIVE AXLE
AT4815Z1CA 48" 1.5 5" variable 10.25"
AT4815ZBICA 48" 1.5 5" variable 10.25"
AT481Z1CA 48" 1 AK34 AK104
AT481Z1CP 48" 1 AK34 AK104
AT481Z2CA 48" 1 5" variable 10.25" AK104
AT481ZB1CA 48" 1 AK34 AK104
AX481T1A 48" 1 AK34 AK104
AX481T1P 48" 1 AK34 AK104
AX481V1CA 48" 1 AK34 AK104
AX481V1CP 48" 1 AK34 AK104
GB4815Q1P 48" 1.5 4.0" 10.3" o.d.
GB481Q1P 48" 1 3.5" o.d. 10.3" o.d.
GB481T1CP 48" 1 AK39 AK104
GB481T1P 48" 1 3.4" o.d. AK104
GB481V1CP 48" 1 AK39 10.3" o.d.
VX5115F3CR 51" 1.5 3.3" o.d. 10.3" o.d.
VX511F1CR 51" 1 3.8" o.d. 12.3" o.d.
VX517F1CR 51" 1 3.1" o.d. 11.3" o.d.
CHORE-TIME FANS

MODEL SIZE HP DRIVE AXLE
38264-4821 48" 1 3.5" o.d. 10.3" o.d.
38264-4822 48" 1 3.5" o.d. 10.3" o.d.
38434-4821 48" 1 AK28 8.5" o.d.
38434-4822 48" 1 AK28 8.5" o.d.
38437-4821 48" 1 AK28 8.5" o.d.
38437-4822 48" 1 AK28 8.5" o.d.
38441-4821 48" 1 AK28 8.5" o.d.
38441-4822 48" 1 AK28 8.5" o.d.
38787-4821 48" 1 AK28 8.5" o.d.
38787-4822 48" 1 AK28 8.5" o.d.
38788-4821 48" 1 AK28 8.5" o.d.
38788-4822 48" 1 AK28 8.5" o.d.
38953-4821 48" 1 3.5" o.d. 10.3" o.d.
38953-4822 48" 1 3.5" o.d. 10.3" o.d.
40921-4822 48" 1 2.9" o.d. 8.5" o.d.
41041-4822 48" 1 AK28 8.5" o.d.
42049-4822 48" 1 2.8" o.d. 8.5" o.d.
43679-4822 48" 1 AK28 8.5" o.d.
43680-4822 48" 1 AK28 8.5" o.d.
45575-4822 48" 1 AK28 7.8" o.d.
45576-4822 48" 1 AK28 7.8" o.d.
468684822 48" 1 AK30 AK94
46868-4842 48" 1 AK30 AK94
469924822 48" 1 AK27 AK84
46992-4842 48" 1 AK27 AK84
46997-4822 48" 1 AK30 AK94
46997-4842 48" 1 AK30 AK94
48483-21 52" 1 AK30 AK94
48483-22 52" 1 AK30 AK94
48483-42 52" 1 AK30 AK94
COOL AIR FANS

MODEL SIZE HP DRIVE AXLE
MNBF48L 48" 1 AK34 16"o.d.
MNBF48M1P 48" 1.5 AK44 16" o.d.
MNBFC48L 48" 1 AK34 16" o.d.
MNBFC48M3P 48" 1.5 AK44 16" o.d.
MNBFC48MIP 48" 1.5 AK44 16" o.d.
MNBFH48L 48" 1 AK39 16" o.d.
MNBFHC48L 48" 1 AK39 16" o.d.
MNBR48L 48" 1 AK30 9.5" o.d.
MNBR48M1P 48" 1.5 AK34 9.5" o.d.
MNBR48M3P 48" 1.5 AK34 9.5" o.d.
MNBRC48L 48" 1 AK30 9.5" o.d.
MNBRC48M1P 48" 1.5 AK34 9.5" o.d.
MNBRC48M3P 48" 1.5 AK34 9.5" o.d.
MNBRE48L 48" 1 2.8" o.d. 9.5" o.d.
MNBREC48L 48" 1 AK28 9.5" o.d.
MNCFA48L 48" 1 AK39 16" o.d.
MNCFA48M1P 48" 1.5 AK44 16" o.d.
MNCFAC48L 48" 1 AK39 16" o.d.
MNCFAC48M1P 48" 1.5 AK44 16" o.d.
MNCFAE48L 48" 1 AK34 16" o.d.
MNCFAEC48L 48" 1 AK34 16" o.d.
MNCFB48L 48" 1 AK39 15.5"
MNCFBC48L 48" 1 AK39 15.6"
MNCFBE48L 48" 1 AK34 15.5"
MNCFBEC48L 48" 1 AK34 15.6"
MNCFC52L 48" 1 AK34 15.5"
MNCFC52M1P 48" 1 AK39 15.5"
MNCFEC52L 48" 1 AK30 15.5" o.d.
FGBC52L 53" 1 AK27 9.5"
FGBC52M 53" 1.5 MA30 9.5"
FGBCE52L 53" 1 AK25 9.5"
FGBR52L 53" 1 2.6" o.d. 9.8" o.d.
FGBR52L 53" 1 2.6" o.d. 9.8" o.d.
FGBR52M 53" 1.5 AK30 9.8" o.d.
MNBR52L 53" 1 MA26 9.5" o.d.
MNBR52L 53" 1 MA26 9.5" o.d.
MNBR52M 53" 1.5 AK28 9.5"
MNBR52M 53" 1.5 AK28 9.5"
MNBRC52L 53" 1 MA26 9.5"
MNBRC52L 53" 1 MA26 9.5"
MNBRC52M 53" 1.5 AK28 9.5"
MNBRC52M 53" 1.5 AK28 9.5"
MNBRDD52L 53" 1 2.7" o.d. 9.5" o.d
MNBRDD52L 53" 1 2.7" o.d. 9.5" o.d
MNBRDD52L 3 ph. 53" 1 2.7" o.d. 9.5" o.d
MNBRDD52LE 53" 1 2.7" o.d. 9.5" o.d
MNBRDD52LE 53" 1 2.6" o.d. 9.5" o.d
MNBRDD52LE 3 ph. 53" 1 2.6" o.d. 9.5" o.d
MNBRDD52M 53" 1 3.0" o.d. 9.5" o.d
MNBRDD52M 3 ph. 53" 1.5 3.0" o.d. 9.5" o.d
MNBRE52L 53" 1 AK23 9.5"
MNBRE52L 53" 1 AK23 9.5"
MNBREC52L 53" 1 AK23 9.5"
MNBREC52L 53" 1 AK23 9.5"
MNCFC52L 53" 1 AK34 15.6" o.d.
MNCFC52M 53" 1.5 AK39 15.6" o.d.
MNEF52L 53" 1 AK26 9.5"
MNEF52M 53" 1.5 AK28 9.5"
MNEFC52L 53" 1 AK26 9.5"
MNEFC52M 53" 1.5 AK28 9.5"
MNEFE52L 53" 1 MA25 9.5"
MNEFEC52L 53" 1 MA25 9.5"
NBRID52L-SQ 53" 1 MA33 11.4" o.d.
NBRID52L-SQ 53" 1 MA33 11.4" o.d.
NBRID52M-SQ 53" 1.5 AK39 11.4" o.d.
NBRID52M-SQ 53" 1.5 AK39 11.4" o.d.
HIRED HAND FANS

MODEL SIZE HP DRIVE AXLE
6603-5500 48" 1 AK34 10.4" o.d.
6603-5500 48" 1 3.5" o.d. 10.3" o.d.
6603-5580 48" 1 3.5" o.d. 10.3" o.d.
6603-6000 48" 1 AK34 10.4" o.d.
6603-6000 48" 1 AK34 AK104
6603-6002w/cone 48" 1 AK34 AK104
6603-6002w/cone 48" 1 AK34 10.4" o.d.
6603-6002w/cone 48" 1 AK34 10.4" o.d.
6603-6010 48" 1 MA38 10.4" o.d.
6603-6010 48" 1 MA38 10.4" o.d.
6603-6010 48" 1 MA38 10.4" o.d.
6603-6010 48" 1 AK39 AK104
6603-6020 48" 1 AK41 AK104
6603-6020w/cone 48" 1 MA40 10.4" o.d.
6603-6020w/cone 48" 1 MA40 10.4" o.d.
6603-6030 48" 1 MA38 10.4" o.d.
6603-6030 48" 1 MA38 10.4" o.d.
6603-6030 48" 1 MA38 10.4" o.d.
6603-6034 48" 1 AK34 10.4" o.d.
6603-6034 48" 1 AK34 10.4" o.d.
6603-6034 48" 1 AK34 10.4" o.d.
6603-7086 54" 1 3.8" o.d. 10.3"
6603-7087 54" 1 9.95" o.d. 10.3"
6603-7088 54" 1.5 3.8" o.d. 10.3"
6603-7089 54" 1 3.45" o.d. 10.3"
6603-7132 54" 1.5 3.45" o.d. 10.3"
6603-7133 54" 1.5 3.95" o.d. 10.3"

Both current and archive information above provided by BESS Lab from the Department of Agricultural and Biological Engineering at The University of Illinois at Urbana-Champaign.

DOWNLOAD SHEET

For your convenience, we have created a single sheet with current information regarding some of the most popular exhaust fans in the agricultural industry. This sheet includes drive and axle pulley sizes. All information has been provided by BESS Lab and is subject to change.

DOWNLOAD PULLEY DATA SHEET (PDF)

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