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波形弹簧片是一种用弹簧钢片冲压成型,经热处理淬火后,定型的弹性元件。把它安装在电机端盖的轴承室内,并与轴承外圈接触以调节轴承游隙,降低轴承的噪声。轴承游隙可分为“原始游隙”和“工作游隙”。前者是未装电机前的游隙,后者是装上电机后的游隙。经反复装机试验表明,每种型号轴承,在一定范围的工作游隙内,电机噪声有一定规律。譬如装在 JO_2-31-4电机上的306Z 轴承其工作游隙在5～20μ范围内,电机噪声曲线见图1。从图中可见,轴承的理想工作游隙在8～15μ范围内,电机噪声较小,这段叫做“正常噪声区”。小于8μ和大于15μ,电机噪声都逐渐增大。低于8μ以 A 区表示,高于15μ以 B 区表示。
Wave spring is a sheet of spring steel stamping, heat treatment after quenching, the shape of the elastic components. Install it in the bearing housing of the motor cover and contact with the bearing outer ring to adjust bearing clearance and reduce bearing noise. Bearing clearance can be divided into “original clearance” and “work clearance.” The former is not installed before the motor clearance, the latter is installed after the motor clearance. After repeatedly installed test shows that, for each type of bearing, within a certain range of work clearance, there is a certain motor noise. For example, mounted on JO_2-31-4 motor 306Z bearing its working clearance in the range of 5 ~ 20μ, the motor noise curve shown in Figure 1. Can be seen from the figure, the bearing of the ideal working clearance in the range of 8 ~ 15μ, the motor noise is smaller, this is called “normal noise zone.” Less than 8μ and greater than 15μ, motor noise are gradually increased. A below 8μ expressed in the A, higher than 15μ to B said.