The Thread Tension Assembly is a spare part that plays a critical role in the tension system of a sewing machine. It is responsible for regulating the tension of the upper thread, which is the thread that is fed through the needle and forms the top stitches of a sewing project.
The Thread Tension Assembly typically consists of a tension disc, tension spring, tension regulator, and other related parts. When properly adjusted, it controls the amount of tension on the upper thread, allowing it to feed smoothly through the machine and create even and consistent stitches.
If the Thread Tension Assembly becomes worn or damaged, it can cause the tension to become uneven or unstable, resulting in poor-quality stitching or even thread breakage. In such cases, it may be necessary to replace the Thread Tension Assembly with a new one.