Page 786 - Rollingbearings

9 Spherical roller bearings

Loads

Minimum load P = 0,01 C 0
m
Oil lubricated bearings:

n/n ≤ 0,3 → P = 0,003 C 0
m
r
⎛ KKKK ⎞
K – 0,3
0,3 < n/n ≤ 2 → P = 0,003 C 0 ⎝ 1 + 2 P N n ⎠
r
n
m
For additional r
information
† page 106
Axial load carrying SKF spherical roller bearings are able to accommodate axial loads and even accommodate purely axial
capacity loads

Bearings correctly mounted on an adapter sleeve on plain shafts without ixed abutment:

F = 0,003 B d
ap
Equivalent F /F ≤ e → P = F + Y F
a
r
1 a
r
dynamic bearing F /F > e → P = 0,67 F + Y F
r
2 a
r
a
load
For additional
information
† page 91
Equivalent static P = F + Y F
r
0
0 a
bearing load
For additional
information
9 † page 105
Symbols

B bearing width [mm]
C 0 basic static load rating [kN] (product table, page 792)
d bearing bore diameter [mm]
e calculation factor (product table)
F a axial load [kN]
F ap maximum permissible axial load [kN]
F r radial load [kN]
P equivalent dynamic bearing load [kN]
P 0 equivalent static bearing load [kN]
P m equivalent minimum load [kN]
n rotational speed [r/min]
n r reference speed [r/min] (product table)
Y , Y , Y 2 calculation factors (product table)
0
1

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