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5CrMnMo钢制轴承内圈成形模采用如图3—32所示的工艺处理时,硬度为42～44 HRC,平均寿命可达8000件。
5CrMnMo steel bearing inner ring forming die using the process shown in Figure 3-32, the hardness of 42 ~ 44 HRC, the average life expectancy of up to 8000 pieces.