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Spherical roller bearings

23122EMW33C4 - SNR

23122EMW33C4

Spherical roller bearing, one-piece machined cage, groove and lubrication holes on outer ring

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
BrandSNR
d - Internal diameter110 mm
D - External diameter180 mm
B - Bearing/Inner ring width56 mm
D1 - Inner diameter outer ring160,9 mm
rs - Min fillet radius2 mm
Number of lubrication holes3
b - Groove width8,86 mm
k - Hole diameter4 mm
Radial clearance classC4
Mass5,51 kg
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PRODUCT PERFORMANCE
C - Dynamic load547 kN
C0 - Static load669 kN
Cu - Fatigue limit load72,7 kN
e - Coefficient0.28
Y0 - Static axial load coefficient2.37
Y1 - Lower axial load coefficient2.43
Y2 - Upper axial load coefficient3.61
N ref - Reference thermal speed3000 tr/min
N lim - Mechanical Limit Speed3500 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature200 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)9,146 Hz
BPFI - Over rolling frequency on inner (60 rpm)11,854 Hz
BSF - Over rolling frequency on rolling element (60 rpm)7,5 Hz
BRF - Rotational frequency – rolling element (60 rpm)3,75 Hz
FTF - Rotational frequency - cage (60 rpm)0,436 Hz
ABUTMENT
da max - Max shoulder diameter IR0 mm
da min - Min shoulder diameter IR121 mm
Da max - Max shoulder diameter OR169 mm
ra max - Max shaft & housing fillet radius2 mm
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