Page 1014 - Rollingbearings

18 High temperature bearings
Loads and Table 3

selecting bearing Tolerances of insert bearings for high temperature applications
Nominal diameter Bore diameter 1) Outside diameter
size d, D ≤ Deviation L Deviation L
U
>
U
mm μm μm
The bearing size is selected based on the
basic static load rating C from the relevant 18 30 +18 0 – –
0
product table. 30 50 +21 0 0 –10
For an equivalent static bearing load P , 50 80 +24 0 0 –10
0
the selected bearing must have a C value ≥ 80 120 +28 0 0 –15
0
the value of the requisite basic static load
1) Values in accordance with ISO 9628
rating C 0req (table 5).
The values in table 5 are valid only when
P = F . That is, when: Table 4
r
0
Radial internal clearance for high temperature bearings
• F < 0,8 F r
a
• F < 0,15 C 0 Bore diameter Radial internal clearance Insert bearings
a
Deep groove ball bearings

d Multiples of C5
18 > ≤ min max min max
Symbols
mm μm
C 0 basic static load rating [kN] (product
tables, page 1016 and page 1020) – 10 96 136 – – – –
160
112
18
10
C 0req requisite basic static load rating [kN] 18 24 124 172 56 96
F a axial load [kN] 24 30 136 192 60 106
F r radial load [kN] 30 40 172 236 80 128
P equivalent static bearing load [kN] 40 50 192 272 90 146
0
50 65 230 340 110 180
65 80 270 400 – –
80 100 320 460 – –
100 120 370 540 – –

Fig. 10
Grub screw secured by a nut and a star
lock washer

1012