The bearings are metric dimensions.
There's two ways for those pilot bearing to be made. One is with the rollers caged on the inner ring and a flange-less outer ring. The other has the rollers caged on the outer ring and a flange-less inner ring. No flange on one or the other allows the assembly to slide together.
The size number will be the same and suffix or prefix on the bearing number will tell whether this part or that has the flange or rollers. I've replaced several on M/SM but haven't been into an H for that so I don't know the dimensions offhand. Should be fine as long as they crossed to a roller bearing and have both halves for you.
