I lost a bearing cap when we went to Spring river, I didn't notice it until we got home. 12 miles of rocky dusty road from the hiway to the campground and back, I guess. The dust was as thick as a cap. I replaced that set of bearings and put buddy caps on the 4 hubs.
The hubs felt good when we got to Pickwick and home this weekend.
I think one of these things will be well worth the money.
Infrared Thermometer with Laser Targeting, Non-Contact