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Spherical roller bearings
22318EMKC3 - SNR
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.
Documentation
Product information
PRODUCT DEFINITION
Brand
SNR
d - Internal diameter
90 mm
D - External diameter
190 mm
B - Bearing/Inner ring width
64 mm
d2 - External diameter inner ring
0 mm
D1 - Inner diameter outer ring
165,1 mm
rs - Min fillet radius
3 mm
Number of lubrication holes
0
b - Groove width
0 mm
k - Hole diameter
0 mm
Associated sleeve reference
H2318
Radial clearance class
C3
Mass
8,53 kg
PRODUCT PERFORMANCE
C - Dynamic load
668 kN
C0 - Static load
652 kN
Cu - Fatigue limit load
71,4 kN
e - Coefficient
0.33
Y0 - Static axial load coefficient
2.01
Y1 - Lower axial load coefficient
2.06
Y2 - Upper axial load coefficient
3.07
N ref - Reference thermal speed
3000 tr/min
N lim - Mechanical Limit Speed
3500 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)
5,599 Hz
BPFI - Over rolling frequency on inner (60 rpm)
8,401 Hz
BSF - Over rolling frequency on rolling element (60 rpm)
4,685 Hz
BRF - Rotational frequency – rolling element (60 rpm)
