tension block

Parts used to control thread tension.

tension disk

Each of the parts between which the thread passes during threading.

tension dial

Button that adjusts the tension based on the type of thread.

eyelet

Hole through which the thread is passed.

tension guide

Part used to direct the thread.

yarn rod

Piece connected to the knitting machine; its function is to support the tension mechanism.

yarn clip

Piece that holds the thread when it is not being used.

yarn tension unit

Piece used to guide the thread toward the tension spring and keep it taut.

tension spring

Spindle that maintains thread tension.