Double row cylindrical roller bearings
SKF double row cylindrical roller bearings are available in several designs with a cylindrical or tapered bore. The SKF standard assortment presented in this section includes:
- NNU design bearings
- NN design bearings
- NNUP design bearings
Features and benefits
- High load carrying capacity
Because of their second row of rollers, double row cylindrical roller bearings are suitable for heavy radial loads. - Low friction (Roller end / flange contact area)
The open flange design, together with the roller end design and surface finish, promote lubricant film formation resulting in lower friction and higher axial load carrying capacity. - Long service life
The logarithmic roller profile reduces edge stresses at the roller/raceway contact and sensitivity to misalignment and shaft deflection. - Enhanced operational reliability
The surface finish on the contact surfaces of the rollers and raceways supports the formation of a hydrodynamic lubricant film. - Separable and interchangeable
The separable components of SKF double row cylindrical roller bearings are interchangeable. This facilitates mounting and dismounting, as well as maintenance inspections. - High speed capability
The cage designs are suitable for high speeds, rapid accelerations and peak loads.