RPM
N = 1000 RPM
_ = 1450 RPM
S = 1750 RPM
D = 3400 RPM
S = Solid Shaft
E = Electric Flange Shaft
G = Gas Flange & Shaft
BX = Small Axial BW = Small Frame
VRX = Small Vertical AX = Large Axial
AW = Small Frame LW = Small Frame
ZW = Large Frame FW = Large Frame
HW = Large Frame RW = Premium Series
SW = Premium Series TW = Premium Series