bearing roller

例句：

1. 1. The bearing rollers are essential for the smooth operation of the machine.
   轴承辊对于机器的平稳运行至关重要。
2. 2. The engineer designed a new bearing roller to improve the efficiency of the machinery.
   工程师设计了一种新型轴承辊，以提高机械的效率。
3. 3. The bearing rollers were replaced after several years of use, ensuring that the machine ran smoothly.
   经过几年的使用后，轴承辊被替换，确保机器能够顺畅运行。