Tire Loads Inflations Part 2 Marble

Rolling resistance sometimes called rolling friction or rolling drag is the force resisting the motion when a body such as a ball tire or wheel rolls on a surface it is mainly caused by non elastic effects.

Tire loads inflations part 2 marble.

Since a tire s load carrying capacity is related to the tire s size and how much inflation pressure is actually used maximum loads are rated with the tire inflated to an industry assigned inflation pressure. Valve stems and tpms part 2. I need one clarification. By roger marble i got this question from a reader of an rv forum.

A tire s maximum load table 2 is the most weight the tire is designed to carry. Selecting the correct tire pressure on multi axle trailers. I have always considered the cold psi on the side of my 22 5 rv tires to be the minimum to carry the maximum rated load. Roger marble spent 40 years in the tire industry working for a major.

This is the book where all the load and inflation tables come from and might be considered the tire engineer s bible it is used by tire engineers around the world when they are making tires that are intended to be used in the u s. We at fifth wheel street no longer recommend adjusting trailer tire inflation pressure below the pressure associated with maximum load psi rating molded on the sidewall and only if the wheel rim is appropriately rated for tires that have a maximum of 85 psi or less regardless of the measured scaled weight of individual tire or axle. Two forms of this are hysteresis losses see. Here we find the details of valve stem designs as specified by tra.