prelubricated sealed ball bearing

例句：

1. 1. The precisionof the prelubricated sealedball bearing is crucial for the operation ofthe machine.
   预润滑密封球轴承的精度对于机器的运行至关重要。
2. 2. The engineer carefullyinspected the prelubricatedsealed ball bearing before installing it in themachine.
   工程师在安装机器前仔细检查了预润滑密封球轴承。
3. 3. The prelubricated sealed ball bearing was designedto reduce friction and improve efficiency in themachinery.
   预润滑密封球轴承的设计旨在减少摩擦并提高机械效率。