Chainsaw Repair

I have used SKF 6203 C3 2RS (two sided rubber seals) and just popped out the seals as 660 mentioned, work fine and are usually cheaper than the open bearing for some reason. I have seen both the plastic and metal ball retainer fail. One might think that the plastic retainer would cause less damage when failure occurs but that is not the case IMHO, catastrophic bearing failure creates a mess of the case no matter what material is used in the retainer.

I have also used Nachi bearings with no problems in Husqvarna saws.