The bobbin and bobbin case

The bobbin case

The bobbin case for the industrial sewing machine is a small but complex piece of the machine.

All industrial lock-stitch sewing machines, and some domestic sewing machines, have a bobbin case that can be removed from the sewing machine. Some domestic machines have a bobbin case that is permanently fixed into the sewing machine.

The purpose of the bobbin case is to support the bobbin in the sewing machine so that the machine stitches can be formed. If the bobbin case becomes damaged in any way the machine stitch will not form correctly.

A bobbin case is made to a required size and set of specifications for a particular sewing machine. Therefore, a bobbin case made for a Brand X sewing machine cannot be used in a Brand Y sewing machine.

The front side of the bobbin case.

Reverse side of the bobbin case.

The bobbin

A bobbin is made to a required size and set of specifications for a particular bobbin case. Therefore, a bobbin made for a Brand X bobbin case cannot be used in a Brand Y bobbin case.

All industrial lock-stitch sewing machines, and some domestic sewing machines, use a bobbin that is placed into a bobbin case, which is removed from the sewing machine. Some domestic machines use a bobbin that drops into the fixed bobbin case of the sewing machine.

If the bobbin becomes damaged in any way the machine stitch will not form correctly.

a bobbin used on an industrial sewing machine.


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