Differs from series 10 standard, with a thinner metal layer in the manufacture of the wheel and bracket. The wheel of this series is universal in terms of the type of carrying capacity: the load is low - up to 40 kg per wheel, and by the type of surface - any type of surface, both inside and outside the room. Used at T = - 20 + 60C. For not intense, irregular exercise. It is used on storage trolleys, mobile equipment. When loaded, with sharp turns, they can leave marks on the floor. The wheel disc and bracket are galvanized for a long service life.