If an axial load rated bearing is the best, why are they less reliable than the sealed cartridge bearing?

如果额定轴向载荷轴承是最好的，他们为什么不可靠的轴承密封墨盒比？

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The up jarring section takes use of hydraulic mechanism, the jarring force can be adjusted according to up elevating load but can not exceed the max. load for tool load rated.

上击器采用液压原理，其震击力可由上提力的大小自由调节，但使用时不允许超过工具限定的最大负荷。

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The boiler can combust stably at the rated load scope of 30~100% when burning the design coal.

本锅炉在燃用设计煤种时锅炉能够在30～100%额定负荷范围内稳定燃烧。

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"Not only is this Microsoft's largest patch load on record, but 23 of the vulnerabilities are rated at the most severe level, " he added.

BBC: Two million US PCs recruited to botnets