Pulley Combinations for the RAM4.24-A30-30H fan with a NP02043 Phs, 20 HP, TEFC, Premium (E-Plus3) Eff. Motor
Motor Pulley: 2VP75X1-5/8
6 Turns = 6.2 Motor Pitch
0 Turns = 7.4 Motor Pitch
1/2 Turn = 0.1 Motor Pitch
RPM Range Fan Pulley Pitch Dia. Bushing Belt Qty Belt by Discharge Max Turns Pitch @ Max Turns Min Turns Pitch @ Min Turns
Down Side
401 - 451 2B5V278 28.1 B-2 7/16 2  BX105     5.0 6.4 1.0 7.2
449 - 505 2B5V250-5VX 25.1 B-2 7/16 2  BX98     5.0 6.4 1.0 7.2
The manufacturer reserves the right to use alternate motors from alternate vendors that meet the operating requirements of the fan but may have slightly different specifications.