1
Product information
2
Recommendations
3
Product data Page ................4 Basic rating life Page ..............57
Diagram 13 Angle of oscilla-tion factor b 5 105215102045 b 5 2
I β° If ß < 5°, the value of b 5 for ß = 5°should be used
If Diagram 14 Multiplicationfactor f β Diagrams and for thefactors for the angle of oscillation
b
β 532151020
f âž” page 6 ). The extra largegrease reservoir in the bearing
made possible by the multi-groove
system is advantageous, particu-
larly where the load is of constant
direction, and enables the relubri-
cation interval to be extended, and
also the service life. These advantages are consider-ed in the calculation of the basic
rating life by the coloured regions
in
46
15 I NB. SKF steel-on-steel spherical
plain bearings manufacturer having an outside diam-
eter of 150 mm and above are
produced as standard with the
multi-groove feature in the outer
ring (
β° β < 5°, half the value of f β for β = 5°should be used
The frequency of relubrication H is defined as the ratio of the basic rating life G Diagram 15 Relubricationfactor f H H 5321301020
f
H 46
140050 13 14 5 and f
β . Values of these two fac-tors up to the upper limit of the
coloured area may be used for
bearings with the multi-groove
system.
h tothe relubrication interval N (in h), i.e. H = G h /N; if H < 5, the values indicated by thebroken line can be used 25