Wheel Diameter (mm) Tread Width (mm) Capacity Per Caster (kg) Wheel Bearing Model number Load Height (mm) Swivel Radius  (mm) Swivel Swivell Nylon Total Brake 75 32 90 Plastic with Super Rubber 6202 2-3P02S-306H-1 2-3P02SB3-306H-1 120 70 2-3P20S-306H-1 2-3P20SB3-306H-1 2-3P30S-306H-1 2-3P30SB3-306H-1 2-3P40S-306H-1 2-3P40SB3-306H-1 100 32 120 Plastic with Super Rubber 6202 2-4P02S-306H-1 2-4P02SB3-306H-1 149 87 2-4P20S-306H-1 2--4P20SB3-306H-1 2-4P30S-306H-1 2--4P30S83-306H-1 2-4P40S-306H-1 2-4P40SB3-306H-1 125 32 135 Plastic with Super Rubber 6202 2-5P02S-306H-1 2-5P02S83-306H-1 177 101 2-5P20S-306H-1 2-5P20SB3-306H-1 2-5P30S-306H-1 2-5P30SB3-306H-1 2-5P40S-306H-1 2-5P40SB3-306H-1 Remarks P02S indicates Top Plate; P20S indicates Thread Stem; P30S indicates Grip Ring Stem; P40S indicates Hollow Rivet. Thread Stem:M12*25/M12*35. Stainless steel base plate, screw rod, plug rod and hollow rivet can be reformed according to requirements. The main frame and wheel core of medical casters are made of nylon (PA6) with strong bearing capacity. Its excellent oil resistance, wear resistance, drug resistance and chemical resistance ensure the service life of casters. The wear-resistant TPU is used as the wheel surface material, which has excellent characteristics of oil resistance, water resistance, drug resistance and mold resistance, as well as good shock absorption and noise reduction. The caster is equipped with precision bearings, which effectively reduces the noise and improves the overall smoothness of the caster. The installation methods are: base plate type, screw rod type, plug rod type and hollow rivet type. The above installation methods can be changed as needed.