Over viewing from world market, there are two types of polyurethane wheels, one kind is the polyurethane elastic-body wheel, the other type is the composite structure wheel. These two kinds polyurethane wheels have their own advantages and defects.
1. Polyurethane elastomer wheels
This kind polyurethane wheels are made by polyurethane elastic materials, reformed by casting technology. This kind of wheels is serious in requirements on the application and producing. So it's a huge project and very complicated. Polyurethane wheels of elastomer are rarely chosen by manufactures now.
2. composite structure polyurethane wheels
This type wheels refer to that only the wheel surface uses the polyurethane, the other parts are rubber materials. So it's the combination of the polyurethane material and the rubber. This composite polyurethane wheels bring in a new technologic problem-adhesion between the polyurethane elastomer wheel surface and the rubber wheel body. If this problem can not be done, this kind polyurethane wheel is impossible.
Polyurethane wheels can also be called as green wheels for its harmless to environment and low rolling resistance. Polyurethane wheels draw many attentions by engineers because of their excellent abrasion resistance and good ability of anti-cracking. Usage strength and high elasticity may be the main reasons why polyurethane wheels enjoy high competitiveness in the wheels fields.