You really don't need to get new bearing. You can use the bearing that you have. Just check the spacers. If you really want to change the bearings, I would (and have on mine) go with ceramic bearings.
You can do one of 2 things. Change that bearing for the non ABS type (same as other side of wheel) and use the 2 std spacers off your bike or leave the bearing in and either add another spacer next to your std one to compensate for the difference or fabricate a one piece spacer to the correct size. You will then have different size spacers each side of the wheel so will have to be careful not to mix them up if you ever remove the wheel. Either method will work perfectly.The bearing on the abs wheels are shorter from what I heard.
I think I supposed to switch to a non abs wheel bearing? I’m not sure what I supposed to do about the spaces tho