Temperature limits Sealed SKF spherical roller bearings are suitable for normal operating tem- peratures up to 110 °C (230 °F). Bear- ings for higher operating temperatures can be produced upon request. In these cases, the grease and industrial seal material must be chosen accordingly. Other operating conditions such as the speed may need to be considered as well. Please contact the SKF applica- tion engineering service for further advice.

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Product dataSealed bearings Page ............. 18Page ............. 32

Sealed SKF sphericalroller bearings – for demanding environ- ments

— nitrile rubber (NBR)
— hydrogenated nitrile rubber (HNBR) Sealed SKF spherical roller bearingsare designed to fulfil high demands on sealing efficiency and operational reli- ability under difficult environmental con- ditions.The seals were developedusing computer simulation, making full usage of the vast expertise within the SKF Group. They have been extens- ively tested both in the laboratory and in the field and have proved their reli-able performance and efficiency. SKF sealed spherical roller bearingsinclude double-lip, sheet steel rein- forced seals made of
— fluoro rubber (FPM)and a grease fill which is appropriateto the operating conditions.This forms a ready-to-mount and lubricated-for-life bearing with long service life and normally the same space requirements as a standard open bearing. The advantages include a simplification of the bearing arrange- ment, as well as the option of down- sizing. Facilities for relubrication arenormally not required, and there are no more costs for purchasing, applying and disposing of bearing greases. 10