Kobelco 135 excavator idler wheel repair?

I've got a Kobelco SK135SRLC Excavator that I'm going to have to work on sometime soon for the owner. The track idler wheel bearing? Bushing? Something? is shot. That's my question. I have the parts manual in front of me and all it lists is basically the idler, shaft, bushing, and the seal kit. Has anybody had one of these apart before and can confirm that theres no bearings in there or is it just a big 2 part bushing of some sort? The center of the idler is somewhat shot so I will...

Kobelco 135 excavator idler wheel repair?

Kobelco 135 excavator idler wheel repair?