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Pulley Combinations for the NCA14FA fan with a .5018OT3E56-S48PP-50HZ3 Phs, 0.5 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
754 - 915 AK54 x 3/4 5.2 AX23   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.