The carrying ability of the stern tube bearing decreases with the increase of the inclination of the shaftneck.
尾轴承的承载能力随轴颈倾斜率的增大而减小。
2
And if you have any luck, maybe you'll fall down the elevator shaft and break your neck too.
如果你走运，说不定也会从电梯里掉下去摔断脖子。
3
Crack in neck of hollow shaft is a very serious malfunction, main cause of the crack include: foundry defect, centralized stress, quality problems of welding and heat treatment.