Page 921 - Rollingbearings

Lubrication
Lubrication

Generally, SKF spherical roller thrust bearings
can be lubricated with oil or grease contain-
ing EP additives
Where lubricating with grease, the roller
end / lange contacts must be supplied with
an adequate amount of grease. Make sure to
use a grease with high oil bleeding, such as
SKF LGWM 1, LGWM 2 or LGEP 2 (Selecting
a suitable SKF grease, page 116).

Pumping effect in oil Diagram 1
lubricated Minimum load requirements for spherical roller thrust bearings

applications

The internal design of spherical roller thrust
bearings creates a pumping action, which Rotational speed n [r/min]
produces a low from the small to the large 2 000
roller end face, that can be taken advantage 1 000
of in oil lubricated applications. This pumping
action occurs in applications where the shaft 500
is vertical or horizontal (ig. 6) and should be
considered when selecting the type of lubri- 200
cant and sealing arrangement.
100
For bearings with a machined cage used
in high-speed applications, SKF recommends 50
the oil injection lubrication method (ig. 7).
For additional information about lubricating 20
spherical roller thrust bearings, contact the
10
SKF application engineering service.
150 200 300 400 500 700 1 000 1 500 2 000
Bearing outside diameter D [mm]

Fig. 6 Fig. 7
Pumping effect Oil injection lubrication method

13
Vertical shaft application Horizontal shaft application

919