mamaspark,
That machine is a front loding ZZ. It will require a standard Class 15 bobbin case with the WIDE needle slot. This one: {
http://shop.sew-classic.com/Bobbin-C...SCBC1313ZW.htm }
If you use a narrow slot case the needle will impact it as it zigs and zags.
Double checking with Jenny at Sew-Classic is the best idea though.
Joe