Overview Product Description A.O. Smith Model RB3204 Ball Bearing, Class "A" and "B" Insulation, Continuous Duty, Open Drip Proof, 40° C Ambient, 60 HZ, 1/4 thru 5 H.P. 2 HP 1725 RPM 208-230/460 Volts 6.8/3.4 Amps 1.15 service factor 56H Frame "B" Class Insulation Cross Reference: 311P339 327P274 P56N4T10C2 H181 H181 KM438R Product Videos Custom Field Product Reviews