Blower Motor Pulley size Formula
Blower Motor Pulley size Formula if RPMs are known: 〖RPM〗_a/〖DIA〗_b = 〖RPM〗_b/〖DIA〗_a
For Example:
Variables:
RPMa = Motor RPM 1750
RPMb = Blower RPM 1167
DIAb = Blower Pulley Size 16”
DIAa = Blower Motor Pulley Size
Step 1: (1750 Motor RPM)/(16" Blower Pulley Diameter) = (1167 RPM)/(Motor Pulley Diameter?)
Step 2: 1750 Motor RPM x Motor Pulley Diameter = 1167 RPM x 16" Blower Pulley Diameter
Step 3: (1750 Motor RPM x Motor Pulley Diameter )/(1750 Motor RPM) = (1167 RPM x 16" Blower Pulley Diameter)/(1750 Motor RPM)
Step 4: Motor Pulley Diameter= 18,672/(1750 Motor RPM)
Step 5: Motor Pulley Diameter=10.7"