medium duty high quality PU caster

Product Description

wheel material: PU
color: red / other color like dark blue, black, grey, purplish red available
mounting type: swivel+total brake (this brake is loved by many customers, very convenient and easy to brake and free, metal brake not plastic brake)
bearing type: two best quality ball bearing ***1 which is Japanese standard, all the bearing in the ball race are heat treated, it makes higher loading capacity and longer service life than the bearing without heat treated
wheel diameter: 4inch (**0mm)
loading capacity: **0kg per wheel
thickness of fork: 2.5mm, top plate:3.5mm
zinc plated finishing
our patent design for the wheel core, never make the PU tread degum from the wheel core;
our patent design for the bushing, it is a perfect bushing, have two round circles heaving, it makes the two ball bearing run in one position, not waging left and right;
we use virginal PU material not reused