I think I know what you are talking about. I am very interested in that I just took in a machine for a similar problem. I did get a little plastic thing that holds the bobbin. I thought they were for use with paperless bobbins.
Hi Sue, just a hint, make sure you always put the bobbin in the right way. With the Brother there is a wrong way and a right way!! Ask me how I know? he he he!
I'm including a post here about a similar question. I hope you can sort it out soon. Love and blessings Chris, Newcastle, Australia.
How do you know, Chris....................tsk....tsk.
Incidentally, that's a very clever name for a website......punchwithjudy......................"it was the crocodile what done it!"
I havent seen the inserts, but a machanic i know on sewing machines used to cut a circle out of paper same size as bobbin cut the hole in the middle, put oil on it and insertit inside the bobbin case, and I wonder if this did the same thing.
Hugs Pam.
haven't heard about the inserts so can't help there. However I have a machine at the Repair shop and the technician told me that the Plastic bobbin case will need replacing about every 18 months to 2 years. Most modern machines have plastic bobbin cases these days to cut the cost.