Laundry machine

A laundry machine, comprising:

• a tub that holds washing water;
• a drum provided in the tub to hold laundry;
• a rotational shaft connected to a rear surface of the drum;
• a tub back which forms a rear side of the tub and through which the rotational shaft passes;
• a bearing housing that supports the rotational shaft;
• a suspension that buffers and supports the bearing housing;
• and
• a vibration sensor that senses vibration of a structure supported by the suspension, wherein the tub back includes a rim portion formed at an outside circumferential surface thereof, and wherein a vibration sensor mounting portion is formed at an inside of the rim portion to which the vibration sensor is mounted.