2.5''3''4''5'' Medium Duty Polyurethane / Rubber Caster Wheels Hand Trolley Castors
PU/Rubber caster wheel
hole.All types have swivel and swivel with brake.
3.With big dust cover in two sides to protect ball bearing
4.You can choose PU/Rubber according your using condition,rubber is muting when walking,and PU is wear-resisting.
Material Compare | PP Material | Nylon Material | PU material | TPR Material |
Muting Grade | C | C | B | A |
Endurance Grade | A | A | B | B |
Chemical resistance Grade | A | A | B | B |