Sewing Machine Parts

holds the lower thread supply

• spool pin

• bobbin

• feed dog

• hand wheel

holds the upper thread supply

• throat plate

• take up lever

• bobbin

• spool pin

holds the bobbin in place

• thread guide

• bobbin case

• feed dog

• bobbin winder

moves the fabric under the presser foot

• thread guide

• feed dog

• throat plate

• free arm

allows the raising and lowering of the needle and moves the thread to the needle

• spool pin

• bobbin

• free arm

• hand wheel

holds the bobbin while winding

• bobbin winder

• bobbin case

• hand wheel

• throat plate

determines how long the stitches are

• stitch width

• stitch length

• design dial

• tension disc/dial

controls the tightness of the upper thread

• stitch width

• stitch length

• tension disc/dial

• throat plate

determines how wide or narrow each stitch is

• stitch length

• thread guide

• design dial

• stitch width

guides the thread from the spool pin to the needle

• throat plate

• bobbin

• thread guide

• stitch width