Cutex Brand10 Bobbins for Bernina 1630, 180, 185, 200, 450, 580, 640, 730 Sewing Machines Pack of 10 Bobbins For Bernina Sewing Machines. Bernina Bobbin # : 006026.52.00 Bobbin Measurement : 1" wide X 3/8" tall These bobbins will fit following Bernina sewing machines : 180, 185, 190, 200, 435, 450, 640, 730E, 1000, 1001, 1630