rear axle bearing lubricant nipple

例句：

1. 1. Therear axle bearing is the most critical part of the vehicle's suspension system.
   后轴轴承是车辆悬挂系统最关键的部分。
2. 2. The rear axle lubricant was designed to prevent wear and tear on the axle.
   后轴润滑油被设计用来防止轴的磨损。
3. 3.The rear axle grease fitting is used to connect the engine to the transmission.
   后轴油封用于将发动机与变速器连接。