The problems such as noise, abnormal sound, heat and lubricating oil leakage of front gear box of DF 8b locomotive are analyzed in detail.

对东风8 B型机车前变速箱存在的噪音、异音、发热和机油泄漏等问题，进行了详尽的分析。

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Study of new generation lubricating grease for heavy - duty gear has been discussed elaborately, including its composition, performances and applications.

论述了新一代重负荷齿轮脂的研究，包括其组成、性能、应用。

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The gear pump is suitable in the transportation does not contain the solid particle, non-corrosiveness, the viscosity scope big lubricating ability liquid.

齿轮泵适用于输送不含固体颗粒、无腐蚀性、粘度范围较大的润滑性液体。

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With the help of a machinist, and using a formula he concocted for a stiff, self-lubricating plastic, Fenelon built a crude prototype of the gear and found that the torque required to push the window was half of what the old design required.

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