Generally, SKF spherical roller thrust bearings can be lubricated with oil or grease containing EP additives.
When lubricating with grease the roller end / flange contacts must be supplied with an adequate amount of grease. Depending on the application, this can be solved by filling the bearing and housing with grease, or by regular relubrication. For additional information, contact the SKF application engineering service.
Pumping effect in oil lubricated applications
Spherical roller thrust bearings create a pumping effect because of their internal design. The pumping effect creates a flow from the small to the large roller end face that can be taken advantage of in oil lubricated applications. The pumping action occurs in applications where the shaft is vertical (fig. 1) or horizontal (fig. 2) and should be considered when selecting the type of lubricant and sealing arrangement.
For high-speed applications that use bearings with a machined cage, SKF recommends using the oil injection lubrication method (fig. 3).
For additional information about lubricating spherical roller thrust bearings, contact the SKF application engineering service.