With a patented SKF standard seal for ball and roller bearing units, you can build extended performance and reliability into your fans from day one. Not only are these bearing units easy to mount on a shaft, they are pre-greased, sealed and do not need to be lubricated before or after they have been installed. SKF ConCentra bearing units are filled with a premium bearing grease, and do not require relubrication under normal operating conditions. This reduces maintenance costs, while eliminating premature bearing and seal failures caused by under or over greasing the bearings or using the wrong grease.
