选择属性重置展开属性列表种类深沟球轴承类型双侧带防尘盖型轴承材质SUJ2内径d234567891012151720222528303235404550556065707580外径D4567891011121314151617181920212223242627283032353740424447505255565862656872757880859095100105110115120125130140150160170宽度B22.32.533.5456789101112131415161718192021222324252627293133353739精度P6噪音等级Z2深沟球轴承 两侧带防尘盖型产品型号6704ZZ品牌国产厂订号6704ZZ ZV2已选属性内径d20宽度B4精度P6噪音等级Z2类型双侧带防尘盖型外径D27轴承材质SUJ2种类深沟球轴承