Generally yes, they are much the same. There are a few standard diameters but as long as you get the correct size they will go on. I have had to adjust for varying width (of the solid rubber part) on my 201s, and it can be nuisance to get it to fill a bobbin and pop up at the right time. Berninas doesn't have much option for adjustments so they need to be correct for the brand and model. Long bobbin models often have lager bobbin tires. The width of the solid rubber part seem to vary a bit from seller to seller, even if they are made to be replacements for a particular Singer part number. Some rubber qualities last much longer than others, so they aren't all exactly the same.
Last edited by Mickey2; 10-03-2017 at 06:47 AM.