非对称球面滚子轴承 Asymmetrical roller bearing
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对称形球面滚子轴承较非对称形有着承受更大轴向负荷能力和较长使用寿命。
The symmetry form surface of sphere roll to compare with not symmetry form, the sub - bearings have to bear the larger stalk toward the burden ability and longer service lifes.
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