... material: aluminum alloy3. structure: three-phase & single stage4. EFF2 motor with NSK bearingModel name: 2BHB710-H37Type information:1. frequency(Hz ... IP55 and insulation F, high temperature resistant to180°2. Motor reached Europe EFF2 standard, save more electricity, and more ... needed.5. Sealing ring is placed between housing & motor to prevent entry of foreign matter, improve service life; ...