Double Spring PU Damping Rubber Shock Absorption Caster About Double Spring PU Damping Rubber Shock Absorption Caster Cast Iron Industrial Castor Wheels is cast iron. The cast iron withgood fluidity, casting surface is smooth.Cost is relatively low, In addition,cast iron wear, oil storage capacity is higher, easy to do sets.Cast iron with good compressive strength and shape-keeping ability. Product parameters Wheel Material Wheel Diameter (mm) Wheel Width (mm) Height (mm) Load capacity (kg) Bearing Plate size and installation hole spacing (mm) PU 100 50 180 300 6203 Plate size: 160*114 Instakkation hole: 130*75 125 50 193 300 6203 150 50 206 350 6203 200 50 246 350 6203 Service 1. According to your detail inquiry of different caster wheels, we will give our price within 12 hours, whatever is weekend. 2. According to your requests or minds, give our price or provide samples to you for testing. 3. Provide free design for you according to your actual need. 4. Although we only do business on caster wheels, we could help our clients to find the related products suppliers in China mainland. 5.Wecanreceivetheorderwhateverquantitydoyouneed. 6. Under normal conditions, Three years all products warranty.