collider with the shape of a wheel

Hello, I have prop wheel and if it is rolling, it is a little jumping because of mesh collider. Is there any way to make collider smooth? Like sphere collider? Fflatten sphere collider? I dont want to use sphere collider in current form because it is convex on each side and friction does not work well on it. Maybe somethink in asset store?

Additional question, why despite the axis set to locked in the configurable joint, under the influence of some weight can bend in the direction of the locked axis? How to completely stiffen it?

I think there’s already a wheel collider. If not you could try to use a cylinder.