Cookies on the SKF website

SKF uses cookies on our websites to align the information shown as closely as possible to our visitors’ preferences, such as country and language choices.

Will you accept SKF cookies?

Lubrication

SKF ConCentra roller bearing units are intended for grease lubrication.

Initial grease fill

SKF ConCentra roller bearing units in the general, high-speed and extreme environment variants are filled with a mineral oil based lithium grease. The initial grease fill at the factory fills the bearing completely, and 30 to 50% of the free space in the housing.
Relubrication-free bearing units are filled with a semi-synthetic oil based lithium grease. The initial grease fill at the factory fills the bearing completely, and 60 to 80% of the free space in the housing.
The technical specifications of both greases are provided in table 1.
For general, high-speed and extreme variants, the grease provides reliable performance when operating between 35 and 110 °C. During start-up, temperatures down to –20 °C are permissible. For short periods, temperatures above 110 °C can be tolerated.
For the relubrication-free variant, the grease provides reliable performance when operating between 35 and 130 °C. During start-up, temperatures down to –30 °C are permissible. For short periods, temperatures above 130 °C can be tolerated.
For additional information about permissible temperatures of rolling bearing greases, refer to SKF traffic light concept.
SKF logo