Their applications is primarily on agriculture machinery, transporters, building machinery etc. They are very suitable for mounting in conditions where it is hard to achieve. In this cases insert bearings - bearing units give real contribution to overcome this obstacles and coaxial aberration +- 2°. This bearings are suitable for exploitation in hard working conditions (dust environment etc.). Depending on environment and working conditions, these bearings are manufactured with single, double and triple sealing and in that way answer hardest working conditions (working temperature up to 80°C and short time up to 120°C). Grease for lubrication is complex lithium - based grease with consistency 2 according to NLGI. Bearings are produced with radial internal clearance C3.