Rotor and stator insulation: Class F with
void-free 100% solids resin vacuum-pressure
impregnation
Exciter: Brushless rotating type
Efficiency: All Kato products have a
high-grade electrical steel for best possible
efficiency
Enclosure: Open dripproof
Bearings: Double shielded re-greaseable
ball type
Driver adaptation: All units are available
in a two-bearing design. Typically, units rated 100
kW and lower with 26 or fewer poles can be supplied
in a single-bearing design for direct connection to
the SAE engine drive arrangements.
Rotor and stator insulation: Class F or
Class H with void-free resin
Efficiency: 82% to 94% depending upon kW
rating
Go here for more
construction features.