Quote Originally Posted by Jonathan View Post
Do you reckon the D2812215 Belleville washers would be suitable for preloading RM1204 ballnuts?

I used them with 1204's on my Roland mill at considerably lower pre-load than on the Warco. I don't go above 5mm tooling on that.

Works okay, but agree a lighter section washer would be easier to adjust and give you more take up.