Maintenance-free spherical plain bearings and rod ends are frequently used in the bearing supports of doors in passenger rail cars. Depending on the design, these efficient radial spherical plain bearings are maintenance-free or require maintenance and can be supplied with corrosion protection.
INA spherical plain bearings and rod ends are also used in wagons for bulk freight where severe contamination from dust and dirt occurs. Here, they are used as reliable, maintenance-free bearing supports for camlock shafts, tilting rods and shutters.
Bearings split on both sides are used in the camlock shaft bearing supports of freight cars. They offer more ruggedness against contamination and insufficient lubrication as well as a long operating life. A further advantage is the fact that they can be easily replaced between the locking disc cams without having to remove the disc cams from the locking shaft, which is several meters long. Initial assembly and replacement of the bearings is made considerably easier due to the split outer and inner rings on both sides.