4 Inch 5 Inch 6 Inch 8 Inch Heavy Duty Blue TPR Rigid Caster Wheel Wholesale
Housing：
Solid steel welded construction,
zinc plated double ball-race swivel head,
dust-proof seal heat treated ball-race,
hardened steel balls
Wheel:
Materials:TPR thermoplastic rubber wheels
Bearing type:Precision double ball bearing
Features:
PP/Nylon core with TPR coating is non-marking and durable material, double ball bearing makes Trolley Wheels Heavy Duty more flexible, 5.5 mm - 6 mm steel bracket available base on your request.
Top plate dimension:
European type top plate is available:
Remark: All top plate size can be customized.
