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Spherical roller bearings
249/750-B-MB Spherical Roller Bearings
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Domax
®
Precision rolling bearings
Main Dimensions & Performance Data
d
750 mm
D
1000 mm
B
250 mm
Cr
7200000 N
Cor
18900000 N
Cur
1200000 N
Reference speed
143 rpm
Limiting speed
510 rpm
Mounting dimensions
da min
773 mm
Shaft shoulder minimum diameter ,
rmin
6 mm
Minimum chamfer size ,
Da max
977 mm
Maximum diameter of housing shoulder ,
ra max
5 mm
Maximum pocket radius ,
ds
12.5 mm
Lubrication hole diameter ,
ns
23.5 mm
Lubrication groove width
Temperature range
T min
-30 °C
Minimum operating temperature
T max
200 °C
Maximum operating temperature
Calculation coefficient
e
0.22
Fa/Fr corresponds to different X and Y coefficients
Y1
3.1
Axial dynamic load factor
Y2
4.62
Axial dynamic load factor
Y0
3.03
Axial static load factor