Crown Drop of a Needle roller decides the pressure distribution between roller and raceway, capability and life.
轴承滚针的凸度设计，决定了滚动体与滚道间的接触压力分布，影响其性能和寿命。
Crown Drop of a Needle roller decides the pressure distribution between roller and raceway, capability and life.
轴承滚针的凸度设计，决定了滚动体与滚道间的接触压力分布，影响其性能和寿命。
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