In most cases, the sealed variant is dimensionally interchangeable with open bearings enabling a simple and economic upgrade.
Under certain operating conditions, sealed SKF Explorer spherical roller bearings can be considered relubrication-free. The bearings do not require external seals in all but the most aggressive environments.
The seals virtually eliminate the risk of lubricant leakage often associated with conventional open bearings and external seals, minimising their environmental impact.
Sealed SKF Explorer spherical roller bearings feature acrylonitrile-butadiene double lip seals and high quality SKF grease. A high temperature variant with hydrogenated acrylonitrile-butadiene rubber seals and high temperature SKF grease is also available.