密封件橡胶的类型必须符合油脂的规定。
Rubber type of seals must comply with the prescribed grease.
轴承上必须有密封件，防止外部的灰尘和水分进入，也防止轴承内部的润滑油脂外漏。
The bearing must be equipped with seals that are able to keep dust and water out and the grease inside the bearing.
标准版本采用腈双密封唇和标准油脂。
Standard versions feature a nitrile double-lip seal and standard grease.
平均直径变动的调心球承也可带密封（图1.6）和一个终身油脂填充。
Self-aligning ball bearings of the mean diameter range are also available with seals (Figure 1.6) and a for-life grease fill.
底部和水分的吸收层侧边缘密封，以防止通过班轮这些边缘的水分，油，油脂和其他污染物的迁移问题。
The bottom and side edges of the moisture absorbing layer are sealed to prevent the migration of moisture, oil, grease and other contaminants through these edges of the liner.
低压密封试验4.4.1进行低压密封试验时，低温阀门密封面应保持干净，无油、无油脂和密封脂，如需防止擦伤。
Low pressure seal test 4.4.1 for low pressure seal test, the sealing surface should be kept clean, no oil, no grease and seal fat, for to prevent scratches.
把混合的氢化油抽压进密封式系统，油脂便在小的冷冻滚筒上结晶。
The mixture of hydrogenated oils is pumped into the closed system and the fat solidifies on small refrigerated cylinders.
填料采用柔性性石墨材料，密封性可靠。用户有要求时可提供填料隔环和注油脂结构。
Packing uses flexible graphite for dependable sealing performance. If request by users , packing spacer ring and greasing mechanism can be available .
填料采用柔性性石墨材料，密封性可靠。用户有要求时可提供填料隔环和注油脂结构。
Packing uses flexible graphite for dependable sealing performance. If request by users , packing spacer ring and greasing mechanism can be available .
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