Housing and wheel core made of high quality Nylon -PA6, which with perfect load-bearing capacity, excellent oil resistivity,abrasive resistance, drug and chemical resistance for long life of our casters. Wheel tread made of TPE material. It shows better resistance to weathering, fatigue and high temperature, it assures of quiet and stable rolling. Inner wheel with precision bearing ensures the movement smooth and low noise. Product Parameters Specification Wheel Diameter 100mm Caster width 79.8mm Tread width 19.7mm Bolt diameter M12 Bolt Length 15mm Offset 30.9mm Swivel Radius 100mm Overall height 130.6mm Temperature -30/+80ºC Standard EN12531 Weight 0.64KG Dynamic load capacity 80KG Static Load capacity 100KG FAQ Q: Are you a trading company or a factory? A:We are a manufacturer and sell our own products. We have our own production line, warehouse and design and team, which allows us to provide our customers with a complete set of medical caster solutions. Q: Can we visit your factory before order? A: Yes, we warmly welcome and sincerely invite you or your team to visit our factory,we will arrange everything once you get off from the plane. Q: What's the delivery term? A: we will send your order within 15 days for below 1000 order and 30 days for below 10000 order. Q:Can I get caster wheel samples for new design? A: we will provide free samples for ready goods or new design, even you provide one draft, we will provide your sample within one week. Q: Can I add my logo on the product without charge? A: Yes, OEM and ODM both are available for us.