... .Double Bearing Brushless Alternator 2.6.8-550KW 3.IP23 brushless alternator 4.Insulation Class:H 5.Constant Working TypeS1 JL Series ... GB755, IEC60034, BS5000, VDE0530, CSAC22.2-100(3) Single or double bearings are available, options for all kinds of adaptors and ... bearings(8) Standard IP23 protection, optional severe environment protection JL Series Double Bearing Brushless Alternator