Bernina Drive Belts | Bernina Motor V Belt | Bernina Belts Sizes Types

See the dimensions and sizes of the Bernina vintage belts in the attached tables. Of course I could not describe all the models, if you have a suggestion feel free to write a comment, there is a possibility and error in the dimensions, I write all this based on my own experience, notes and data that I found in the service instructions. Dimensions are written in millimeters, example 5x441, where 5 is the width V of the belt and 441 is the total outer length of the belt.

Vintage Bernina mainly use V belts, Bernina 930 record use teeth belts, and older models of Bernina 125  used rubber round belt. The rubber round belt is not recommended due to stretching and oscillations during sewing on the machine, the susceptibility to stretching interferes with the proper operation of the sewing machine...etc 

Bernina service manual / Bernina parts diagram

BERNINA model /  class	Main belt to the  handhweel	Belt to the motor
Bernina 125 / 1950s	5x441	5x250
Bernina 530 Record 1954	5x340	5x340
Bernina 531 1958	5x340	5x340
Bernina 532 - free arm	5x340	5x340
540 Favorit - free arm	5x345	5x340
540 Favorit - flatbed	-	changeable...5x340
Bernina 600	-	changeable...322-340

BERNINA model /  class	Main belt to the  handhweel	Belt to the motor
Bernina 707/708/709	5x441	5x229
Bernina 717 Flatbed	-	5x236
Bernina 730 Record  1963-1967	5x350 or  5x352	5x340 motor type PSE
Bernina 730 Record  1968-1971	5x350	5x322 motor type EPL
Bernina 731/732 1963-67	5x350 or 5x352	5x340
Bernina 800/807/809/ 810	6x422 also goes with 5x422	5x229
Bernina 801/802/803	6x422 also goes with 5x422	5x229 / 5x244
Bernina 830 Record	6x422	5x260
Bernina 831/832	6x422	5x260
Bernina 900 Nova	6x422	5x229
Bernina 930 Record	7.9x462.3	6.35x223.5