PU：

 We use polyether, rather than polyester, it has excellent hydrolytic stability.

Resistant to oil and grease 

Medium Duty Caster 314 / 414 / 514 PU Caster (click the picture for more information)

Dia.：75mm (3") / 100mm (4") / 125mm (5")

Width：30mm (1-1/4")

Dynamic Load：100 KG