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Pulley Combinations for the NCA24FA fan with a .7518OT3E56-S48PP3 Phs, 0.75 HP, ODP (Open Drip Proof) Motor
Motor Pulley: 1VL40 x 5/8
5 Turns = 2.6 Motor Pitch
0 Turns = 3.6 Motor Pitch
1/2 Turn = 0.1 Motor Pitch
RPM Range Fan Pulley Pitch Dia. Bushing Belt Qty Belt Max Turns Pitch @ Max Turns Min Turns Pitch @ Min Turns
434 - 527 AK114 x 1 11.2 AX39   4.0 2.8 1.0 3.4
528 - 641 AK94H 9.2 AX35   4.0 2.8 1.0 3.4
528 - 641 AK94 x 1 9.2 AX34   4.0 2.8 1.0 3.4
631 - 766 AK79 x 1 7.7 AX31   4.0 2.8 1.0 3.4
759 - 922 AK66 x 1 6.4 AX29   4.0 2.8 1.0 3.4
934 - 1134 AK54 x 1 5.2 AX27   4.0 2.8 1.0 3.4
1104 - 1341 AK46 x 1 4.4 AX25   4.0 2.8 1.0 3.4
1313 - 1594 AK39 x 1 3.7 AX23   4.0 2.8 1.0 3.4
1518 - 1843 AK32H 3.2 H-1 AX21   4.0 2.8 1.0 3.4
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.