how strong are the non M wheel bearings?

[Eric]

I'm going to start aquiring parts for my ring car, and i'm wondering if the little E30 wheel bearings will be strong enough.

have you heard of these failing from hard track use?

If these or any other parts i might not have thought of are a week point on the car i might do a 5 lug swap, but I don't want to spend the money on that if a 4 lug setup will suffice.

[ldsbeaker]

I thought they were the same part?

[rs4pro3]

If new they should be fine, I had 15+ year old bearings on mine and threw 4-piston front brakes on and coil overs, within a year I had to replace both bearings. But the new ones have shown no issues at all.