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The reasons for the rapid temperature rise of NSK spindle bearing matching bearing 70187016ctyndblp4 are discussed by the technicians of NSK Seiko Co., Ltd. in Japan. Taking NSK spindle bearing products in Japan as an example, precision spindle bearings include precision angular contact ball bearings 70 series, 719 series and 72 series, precision cylindrical roller bearings N10 series and NN30 series, TAC series bearings for precision ball screw support.
Generally, the bearing of Tyn cage belongs to medium and low speed, and it is more suitable to use it within 3000 rpm.
Its limit speed is 5000 rpm. When reaching the limit speed, the bearing is basically unusable. Therefore, the engineers of major machine tool plants should consider the speed during normal operation and the high speed limit of the machine when designing the machine, Avoid damage to the bearing because the rotating speed of the machine is too high and the bearing cannot reach its rotating speed;
It has something to do with the concentricity of the shaft.
Resulting in the rapid rise of the bearing temperature. It needs to be adjusted according to the fit degree between the rear bearing and the shaft. If it is too tight, the bearing temperature will be too high and the bearing will burn out. If it is too loose, there will be a gap between the bearing and the shaft, resulting in disconnection.
Such as 7018ctyndblp4 bearing, 7013ctyndtlp4 bearing, 7012ctyndbblp4 bearing
The same reasons for the specifications and models of 7008ctynsulp4 bearing and 7006ctyndflp4 bearing can also be referred to. In addition to the reasons listed above, there are other reasons for the temperature rise of 7016ctyndblp4 bearing. Only from the analysis of the installation process, it may also have a certain relationship with the storage environment.