FEATURES: • Totally Enclosed, 50 Hertz Motors supplied with CE Markings • Double Sealed Ball Bearings On All 56 Frame Commercial Duty Pump Motors • Double Shielded Ball Bearings On All Other Motors • Continuous Duty • 60 Hertz & 60/50 Hertz • 50/60 Hertz Motors have 1.0 Service Factor on 50 Hertz • 40°C Ambient • Shaft Slinger On Pulley End • NEMA®† 'C' Flange Mounting • Premium 303 S.S. on 56J Mount: 7/16-20 UNC-2A • Shaft Threads for 56J Mount: 7/16-20 UNC-2A