Polyamide are more expensive than common plastic.So In order to save production cost some company call Plastic casters wheel Nylon caster as they are made from common plastic.It's hard to identify their difference just from Color and surface,as they are almost have same profile.

Ar normal plastic casters wheels can fulfill the job on some light weight equipment,But they can not used on heavy duty equipments casters.

How to recognize plastic caster and polyamide caster?

Generally speaking finished polyamide wheel have
faint yellow and ivory white color. Nylon is a kind of Polymeric material.They have high mechanical strength.There have a very simple identification method is to hit it with a hammer,if you wheels are hard enough, Or else it's plastic caster wheels.

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