Re: [Paddlewise] Primex cart

On 26 Dec 2004 at 17:38, alex wrote:

> It's a good one; ball bearings work nicely even without any lubricant.
> If they really have ball bearings on this wheel, as they write.

Given that the cart is presumably used for short distances and low 
speeds, bearing lubricant will be irrelevant.  They'd have to be well 
sealed to keep out sand, though.

> Almost
> the same surface area as 10"*3" Primex (OD*W), which they also have,
> for $10:

When dealing with rolling resistance, diameter matters more than 
width, especially in rough terrain and sand.

Mike