Roller can ear general selection of general rubber and metal materials wheel bone composite type and become, also effective plastic (such as polyester) instead of rubber made. Because the general rubber strength is low, compressive strength is not high, wear resistance is relatively poor, can not be applied in the light-loaded car, and nylon polished wheels, despite the strength and compressive strength is high, but there is no rubber ductility, vibration, operation, sliding friction is small, very easy to run off, is still not the idealization of the solid core wheel raw materials. For rubber wheels that are used under severe standards such as heavy loads, large tilts, and strong impacts, it is more appropriate to use a polyurethane elastic system.

Polyurethane goods compressive strength cache, polyurethane tear resistance, polyurethane abrasion resistance, polyurethane corrosion resistance, weathering resistance layer of polyurethane high resilience. Roller lug characteristics are much better than rubber, butyl rubber, abrasion resistance for rubber 5 times, abrasion resistance for butyl rubber 3-5 times, resistance to expansion in the high toughness with 68.5 percent of the resilience rate, polyurethane elastomer strength category adjustable Shore 20A - Shore 98A.

polyurethane elastomers bearing capacity, abrasion, acid and alkali, and metal materials frame bonding strong, can be used in the production and manufacturing of In a variety of transmission mechanism commonly used rubber wheel, guide wheel, anchor chain pulley these.

Roller tank ear polyurethane rubber wheel also has acid and alkali resistance, good ductility, strong adhesion and other characteristics, in the mine to open the monorail crane, rack and pinion cranes and cleaning cars such as car on the application is very wide, the actual effect is more idealized!