Larger SKF E2 bearings for electric motor rebuild SKF now offers deep groove ball bearing sizes up to E2.6316-2Z/C3, appropriate for electric motors up to IEC frame size 355 (NEMA frame size 449TS)SKF Energy Efficient deep groove ball bearings SKF Energy Efficient (E2) bearings have been optimized for reduced energy use, increased service life and reduced total cost of ownership in many industrial 
SKF Energy Efficient (E2) bearings Because they exhibit ultra low friction, SKF Energy Efficient (E2) bearings offer an excellent way to reduce energy consumption. Because they can run cooler SKF Energy Efficient (E2 design) tapered roller bearingsThe SKF Energy Efficient (E2 design) tapered roller bearings belong to SKF E2 performance class, providing at least 30% less friction than corresponding SKF Energy Efficient (E2) ball bearings and units To meet the ever-increasing demand to reduce friction and energy use, SKF E2 insert bearings are characterized by a frictional moment that is at least 50% SKF Energy Efficient deep groove ball bearings SKF Energy Efficient (E2) deep groove ball bearings can provide more than twice the service life while reducing energy use and total cost of ownership. Design