3 ms·
I think that’s for failure tolerance. Five isn’t much more stable than four, but if a wheel falls off then five remains stable.
by mikeash 8y ago
I think that’s for failure tolerance. Five isn’t much more stable than four, but if a wheel falls off then five remains stable.
- gotocake 8y agoFrom experience, if you lose a caster the chair won’t balance on the remainder, it will thud down on the leg. What more legs does however is more evenly distribute the load, which is important when rolling around, leaning back and all, of the other things we do in office chairs.