As critical roller bearing of rolling mill, the spare parts of four row cylindrical roller bearings can be replaced, installed, dismounted and cleaned easily. Within the radial installation area, it can provide max. radial loading ability with lower friction factor.

There are three kinds of structure type: FC type, FCD type and FCDP type.

FC Type

It belongs to separable bearings that inner ring can be seperated from the whole bearings. It has better limit rotation speed and can be interchangable. Protection cage can be brass or steel cages.

FCD Type

It belongs to separable bearing. However FCDP type will be much convenient than FCD type for separable degree. For FCD type, it can only make two inner rings separate from the whole bearing with higher limit rotation speed and interchangable feature. Protection cage can be brass or steel cages.

FCDP Type

It is critical roller bearing. The spare parts can be separable with high precision. It is very convenient to install, dismount and clean. Within installation area, it can provide max. radial load ability with lower friction factor. So it is applied in high speed, heavy load and terible working environment of rolling mill production.