Product Description Wheel Dia 94mm(3.8''), 100mm(4''), 114mm(4.5''), 125mm(5''), 145mm(5.8''), 150mm(6''), 184mm(7.4''), 200mm(8'') Wheel Material PP, ER, PA,PU Fork Assembly Dark Green Painted, Zinc Plated, Chrome Plated,Color Galvanized, Dark green Plastic Fitting Swivel(top plate), Swivel(thread plate), Swivel(hollow rivet), Rigid, Swivel grip ring stem Brake Assy Total lock brake(metal), Tread lock brake(metal), Side lock brake(metal), Total lock brake(plastic), Tread lock brake(plastic), Total side lock brake(metal) Bearing Model Singel ball bearing, Double ball bearings, Derlin bearing, Plain bore(bushing bearing) Application Genreral industry, Trolley, Medical equipment, Electronic equipment and logistics handling, Scaffold, Material shelf Detailed Photos Company Profile Certifications Our Advantages Customized Service of SUPO The approval loading weight in this industry purchase guide, means to satisfy 1. ground smooth 2. environment temperature between 20-30ºC(except for high-temperature caster)3. moving speed would not exceed 4km/h. 1. If single caster chosen by you is over 200kg, traction method as motive power, moving speed does not exceed 6km/h, and satisty other two contditions. In order to ensure the life length of caster, please let actual loading weight don't surpass 80% of approval weight. 2. If single caster chosen by you is over 200kg, traction method as motive power, moving speed does not exceed 6-8km/h,and satisty other two contditions. In order to ensure the life length of caster, please let actual loading weight don't surpass 60% of approval weight. If the caster of your demand is over above-mentioned conditions, please contact with us. Our professional engineering team will provide customized caster base on your industry's applied environment and installation dimension. FAQ 1. Are you trading company or manufacturer? We are manufacturer since 2004. Previous it was plastics ejection company with over 20 years experience. 2. What is your warranty for your products? 18 months from the producing, the each item showed the producing date. 3. How can you control your quality? First, we have raw material testing. A.Determing the melt mass flow rate of various thermoplastics. B. Test the mechanical properties of various materials such as tension, compression, bending, shearing, tearing and pelling. C. Making test samples. D. Fast and accurate moisture determination. E. Fast and accurate measurement of solid density. F. Determination of the impact strenght of plastics. Then we have 1+11 testing standard: Weight carry running test 1.Initial wheel hub clearance test 2.Attrite wheel hub clearance test 3.Initial rotation clearance test 4.Attrite rotation clearance test 5.Braking test 6.Wheel brake effectiveness test 7.Rotation braking effectiveness test 8.Vertical static pressure test 9.Salt and acid test 10.High temperature test 11.Low temperature test