Blickle li phn heat resistant wheels and swivel castors blickle 604066 this li phn 125g heat resistant wheel and swivel castor from blickle features a oslash 125mm wheel with a heat resistant pressed steel swivel castor and top plate fitting the bracket is made of pressed steel with a double ball bearing in the swivel head along with a strong central kingpin and ball protection by the special top plate design the dynamic riveting process of the swivel head not only offers an increased se