The friction coefficient between the rubber wheel and the cement floor is about {{0}}.08, and some manufacturers calculate it based on 0.56. The resistance of a smooth cement floor should consider the rolling friction coefficient, which shows that it is much smaller than the sliding friction coefficient of 0.8. There is no fixed value for the friction coefficient with the cement floor, as both the polyurethane roller and the cement floor do not have a suitable coefficient. In terms of ordinary wear resistance, polyurethane is still relatively excellent.
Of course, sometimes we also need to consider the friction coefficient between the polyurethane roller and the previous one, usually calculated as 0.03-0.05. At the same time, we also need to consider that the diameter of your polyurethane roller and the weight of the steel carried on the roller are uncertain values.

Polyurethane, as an elastic material, has excellent characteristics, such as good resilience, wear resistance, and high load-bearing capacity. In terms of production technology, polyurethane rollers are made using die-casting technology. Compared with pouring and injection molding processes, the product has greatly improved load-bearing capacity, operating speed, cracking, and adhesive opening characteristics. Polyurethane rollers are widely used in many industries, and their product characteristics exceed those of injection molding rollers. They have the characteristics of long service life, low noise, and strong load-bearing capacity.
After actual testing (with various materials and temperatures), the friction coefficient of commonly used TDI and MDI polyurethane wheels on flat and dry cement floors is generally lower than {{0}}.65. For conservatism, it is recommended to calculate at 0.6.
The elasticity of polyurethane rollers is closely related to many factors, including the composition of polyurethane, the thickness of polyurethane, and the presence of other compounds; It is also related to temperature, and external temperature will directly affect the strength of polyurethane. If the hardness is too high, the ductility of polyurethane rollers is also relatively limited. Polyurethane rollers have excellent physical functions, and temporary applications of rubber rollers are not easy to harden and age, and have excellent tear resistance and resilience. And polyurethane rollers can operate in natural environments with high working pressure, high-speed rotation, and high and low temperatures; Suitable for various types of inks and packaging printing methods, it has unique resistance to the solution components in various inks, plate lubricants, and generator roller cleaning agents.