Each BERNINA sewing machine has a special hook for bobbins and bobbin cases. Different bobbin cases are therefore available, depending on the machine. The CB Hook is used in particular for sewing utility and decorative stitches with a stitch width of up to 5.5 mm.

CB-hook Bobbins and Bobbin Cases are required for the following machines:

For all BERNINA activa and 3 Series machines
BERNINA virtuosa
BERNINA aurora
BERNINA artista 165, 170 and 630
BERNINA 555 and 570
AND MANY OTHERS LISTED BELOW

Bernina oscillating 120, 125, 130, 135, 140, 145, 150, 153, 155, 160, 163, 165, 170, 210, 220, 230, 240, 430 Aurora, 440 Aurora, 440QE, 530, 534, 555, 570, 630, 700, 701, 707, 708, 709, 710, 717, 729, 730 730 (older model not Artista), 732, 801, 801S, 801 Sport, 802S, 802 Sport, 807, 808, 809, 810, 811, 817, 830, 831, 832, 900 Nova, 910, 930, 931, 932, 1004, 1005, 1006, 1008, 1010, 1011, 1020, 1030, 1031, 1080, 1090, 1120, 1130, 1230, 1260, 1310, 1530, 3-Series 330, 350, 380, 5-Series 530, 550QE, Aurora 430 and 440 Necchi BF