I've been running the same stock cheapo bearings my trailer came with. In 6 years I've repacked the bearings twice and they still look like new. This past repacking I was looking for new inner seals and the Timkins were $29 each. I bought the cheapo style that came with my trailer for $7 each, which have been working just fine for 6 years. My point is I know Timkin is a great bearing but it seams the cheapo stuff works just as well. At least in my case.