The spherical roller bearing withstands significant loads and misalignments. This type of roller bearing is well adapted to harsh operating conditions: impacts or vibrations (crushers, vibrating screens, heavy handling, etc.). With the ULTAGE design, NTN offers as standard, unsurpassed endurance and longevity.
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Documentation
Product information
PRODUCT DEFINITION
Brand
SNR
d - Internal diameter
25 mm
D - External diameter
52 mm
B - Bearing/Inner ring width
18 mm
d2 - External diameter inner ring
30,5 mm
D1 - Inner diameter outer ring
45,5 mm
rs - Min fillet radius
1 mm
Number of lubrication holes
0
b - Groove width
0 mm
k - Hole diameter
0 mm
Radial clearance class
C3
Mass
0,16 kg
PRODUCT PERFORMANCE
C - Dynamic load
57,3 kN
C0 - Static load
46,1 kN
Cu - Fatigue limit load
5,6 kN
e - Coefficient
0.34
Y0 - Static axial load coefficient
1.96
Y1 - Lower axial load coefficient
2
Y2 - Upper axial load coefficient
2.98
N ref - Reference thermal speed
13000 tr/min
N lim - Mechanical Limit Speed
17000 tr/min
Tmin - Min operating temperature
-40 °C
Tmax - Max operating temperature
200 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)
5,645 Hz
BPFI - Over rolling frequency on inner (60 rpm)
8,355 Hz
BSF - Over rolling frequency on rolling element (60 rpm)
4,85 Hz
BRF - Rotational frequency – rolling element (60 rpm)
