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Spherical roller bearings

23228EAW33C3 - SNR

23228EAW33C3

Spherical roller bearing, pressed steel 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 diameter140 mm
D - External diameter250 mm
B - Bearing/Inner ring width88 mm
d2 - External diameter inner ring162,6 mm
D1 - Inner diameter outer ring219,6 mm
rs - Min fillet radius3 mm
Number of lubrication holes3 ou 4
b - Groove width12,64 mm
k - Hole diameter6 mm
Radial clearance classC3
Mass17,92 kg
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PRODUCT PERFORMANCE
C - Dynamic load1140 kN
C0 - Static load1370 kN
Cu - Fatigue limit load136 kN
e - Coefficient0.33
Y0 - Static axial load coefficient2.01
Y1 - Lower axial load coefficient2.06
Y2 - Upper axial load coefficient3.06
N ref - Reference thermal speed1700 tr/min
N lim - Mechanical Limit Speed2400 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature200 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)7,628 Hz
BPFI - Over rolling frequency on inner (60 rpm)10,372 Hz
BSF - Over rolling frequency on rolling element (60 rpm)6,258 Hz
BRF - Rotational frequency – rolling element (60 rpm)3,129 Hz
FTF - Rotational frequency - cage (60 rpm)0,424 Hz
ABUTMENT
da max - Max shoulder diameter IR0 mm
da min - Min shoulder diameter IR154 mm
Da max - Max shoulder diameter OR236 mm
ra max - Max shaft & housing fillet radius2,5 mm
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