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Pulley Combinations for the NCA8FA fan with a .2518OS1BSPAO48-75PK1 Phs, 0.25 HP, ODP (Open Drip Proof) Motor
Click on a part # to order that part.
Motor Pulley: 1VL34 x 1/2
5 Turns = 2 Motor Pitch
0 Turns = 3 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
734 - 934 AK54 x 3/4 5.2 AX21   4.0 2.2 1.0 2.8
868 - 1104 AK46 x 3/4 4.4 AX19   4.0 2.2 1.0 2.8
Motor Pulley: 1VL40 X 1/2
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
934 - 1134 AK54 x 3/4 5.2 AX22   4.0 2.8 1.0 3.4
1104 - 1341 AK46 x 3/4 4.4 AX19   4.0 2.8 1.0 3.4
1104 - 1341 AK46H 4.4 AX21   4.0 2.8 1.0 3.4
1313 - 1594 AK39 x 3/4 3.7 AX18   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.