Bernina 740 Favorit V Belt
 

I've been trying to find a replacement v-belt for my Bernina 740 favorit for about a year and a half now, and I haven't had any luck. I know the size is 5x315mm, but I haven't been able to hunt down the part number or a suitable replacement. Can anybody point me in the right direction?

When we needed to replace this belt at the shop, we would use a lug belt (Grade A, which is important). 1250 would be the perfect size, but they don't make them. They make a 1214 or a 1258. Then you need to adjust the motor mount to get the right tension on the belt.