FEATURES: For all Products Listed in this Section: • UL®† Listed & CSA®† Certified • Cast Iron Inner Bearing Caps (180 Frame and Larger) • 40°C Ambient, NEMA®† Design B Performance • Regreasable Bearings 180 Frame & Up • Lifting Provisions, 180 Frame & Up • Conversion Kits: Cast Iron Fan Cover (180 Frame & Up) • Sealed Bearings 56-140, Shielded 180 Frame & Up • Class, Group & Temp Code as Noted Below For Catalog Numbers Beginning with XS: • Cast Iron Frame Except Where Noted • Cast Iron End Brackets & Conduit Box • Class F Insulation • 1.00 Service Factor on 60 Hertz Sinewave Power • Stainless Steel Nameplate & Zinc Plated Hardware • Shaft Slinger on Pulley End for IP54 Protection For Catalog Numbers Beginning with X: • Cast Iron Frame Except Where Noted • Cast Iron End Brackets & Conduit Box • Class F Insulation • 1.00 Service Factor on 60 Hertz Sinewave Power • Stainless Steel Nameplate & Zinc Plated Hardware • Shaft Slinger on Pulley End for IP54 Protection