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Pulley Combinations for the NCA18HPFA fan with a 00318OT3E56Z-48PP3 Phs, 3 HP, ODP, Premium (E-Plus3) Eff. Motor
Motor Pulley: 2VP42 x 7/8
6 Turns = 3 Motor Pitch
0 Turns = 4 Motor Pitch
1/2 Turn = 0.083333333 Motor Pitch
RPM Range Fan Pulley Pitch Dia. Bushing Belt Qty Belt Max Turns Pitch @ Max Turns Min Turns Pitch @ Min Turns
636 - 756 2BK90H 8.7 H-1 BX25   5.0 3.16 1.0 3.83
719 - 854 2BK80H 7.7 BX25   5.0 3.16 1.0 3.83
826 - 981 2BK70H 6.7 H-1 BX28   5.0 3.16 1.0 3.83
971 - 1153 2BK60H 5.7 H-1 BX25   5.0 3.16 1.0 3.83
1065 - 1264 2BK55H 5.2 H-1 BX25   5.0 3.16 1.0 3.83
1178 - 1399 2BK50H 4.7 H-1 BX25   5.0 3.16 1.0 3.83
1318 - 1565 2BK45H 4.2 H-1 BX25   5.0 3.16 1.0 3.83
1419 - 1686 2BK40H 3.9 H-1 BX23   5.0 3.16 1.0 3.83
Motor Pulley: 2VP60 x 7/8
6 Turns = 4.7 Motor Pitch
0 Turns = 5.9 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
1101 - 1281 2BK80H 7.7 H-1 BX33   5.0 4.9 1.0 5.7
1265 - 1472 2BK70H 6.7 H-1 BX30   5.0 4.9 1.0 5.7
1804 - 2098 2BK50H 4.7 H-1 BX25   5.0 4.9 1.0 5.7
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.