根据 Y 系列设计要求,在 H132及以下机座的电机须采用全封闭式轴承。对于接触式封闭轴承,由于轴承本身的摩擦损耗甚大,因此对电机的效率的影响较大(与普通轴承相比,约使电机效率下降1～2%左右)。目前我国厦门轴承厂试制成功非接触式密封轴承,极大地改善了轴承本身的摩擦损耗,这对电机行业采用全封闭轴承是相当 According to Y series design requirements, in the H132 and the following motor base to be used fully enclosed bearings. For contact-type sealed bearings, due to the friction loss of the bearing itself is very large, so the greater the impact on the efficiency of the motor (compared with ordinary bearings, about the motor efficiency decreased by about 1 to 2%). At present, China’s Xiamen Bearing Factory trial successful non-contact sealed bearings, which greatly improved the friction loss of the bearing itself, which is used in the motor industry fully enclosed bearings are quite