Different PU wheels hardness is suitable for different tools
Polyurethane wheels hardness has high hardness, middle hardness, soft hardness.
High hardness is about 90-100 degree, the PU wheel matches wheelbarrow.
Middle hardness is about 80-90 degree, the PU foam wheel matches hand trolley, hand truck., bike, wheelchair and so on.
Wheelbarrow PU wheels have following size: 400-8,350-8,350-7,400-6,325-8 and so on.
Polyurethane wheels for hand trolley have these size: 350-4,300-4,250-4,200x50 and so on.
PU foam wheel for children car have these size: 6”x2”,200x50,250-4,300-4 and so on.
PU wheels for bike have following size :12”,14”,16”,18”,20”,22”,24”,26”
PU foam wheels for wheelchair have these size: 20”,22”,24”,26”
Of course, you can choose different hardness and different size of PU wheels for your favor.
Don’t hesitate to ask for us if you have any question of PU wheels.