Yes.
They are the best cutoff saw ever made in my opinion. The new TS500i fuel Injected saw Is a very nice saw too, but way more complex.
Epa regulations were the demise of the TS400. It's emissions were too dirty.
If your saw has a bearing pocket wallered out, you can use loctite 660 bearing retaining compound plus the catalyst. It solidifies in about one minute, and reaches full cure in 24hrs.
It will fix up to a .025 slop in the pocket, and Permanently.
Yours Is the clutch side I assume? Usually the clutch gets worn and becomes out of balance, causing eventual wear from the excessive vibration.
I install the new bearings on the crank, then heat up the fan side and drop the crank in. This will keep the loose side centered when it gets dropped in with the side with the retaining compound. It Is Important that the bearing pockets of both sides be oil free and dry, as well as the outer surface of the crank bearings. I use a small steel bristle brush and a laquer thinner to prep the crankcase, then use compressed air to blow it dry.
The catalysts recommended for use with the #660 loctite quick metal are #7088 tube paste or spray version #SF 7649. All three available are on ebay. There are expiration dates on loctite too, so make sure they aren't expired.
If your case half is broken, PM me, I may be able to scrounge one up. I have bunches of new and used parts for pretty much any cutoff saw.