The wheels of this series have the best lifting characteristics: high load capacity at small diameter (saves money) of 450 kg, has no residual deformation during prolonged idle in the loaded state, does not cause noise during transportation, has high resistance to slippage. Wheel disc made of gray cast iron, ham red or yellow polyurethane. “PROFI” bracket type for heavy heavy loads. The fork of the swivel bracket is connected to the platform by a reinforced bolt with a nut. The rotary assembly has two separate (in separation) ball bearings. They are used on heavy industrial equipment, in mechanical engineering, in transportation of double-glazed windows in production and cargoes up to 3 tons and so on. The bracket is subjected to galvanization, which ensures a long service life.