I have these Bearing that are similar to a 056 bearing but are smaller. They have the same style seals and have the same step. I'm thinking that there are a late style 031/032 bearing. Stihl part number 9523 003 4440. Both 9523 003 4440 are NOS. One is A 056 bearing and one I think is the 031 /032 are in the pics for comparison.