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Spherical roller bearings

23120EG15KW33 - SNR

23120EG15KW33

Spherical roller bearing, polyamide cage, groove and lubrication holes on outer ring, tapered bore 1:12

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 diameter100 mm
D - External diameter165 mm
B - Bearing/Inner ring width52 mm
d2 - External diameter inner ring114,6 mm
D1 - Inner diameter outer ring146,9 mm
rs - Min fillet radius2 mm
Number of lubrication holes3
b - Groove width8,39 mm
k - Hole diameter4 mm
Associated sleeve referenceH3120
Radial clearance classCN
Mass4,25 kg
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PRODUCT PERFORMANCE
C - Dynamic load471 kN
C0 - Static load575 kN
Cu - Fatigue limit load64,1 kN
e - Coefficient0.28
Y0 - Static axial load coefficient2.34
Y1 - Lower axial load coefficient2.39
Y2 - Upper axial load coefficient3.56
N ref - Reference thermal speed3200 tr/min
N lim - Mechanical Limit Speed3900 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)9,595 Hz
BPFI - Over rolling frequency on inner (60 rpm)12,406 Hz
BSF - Over rolling frequency on rolling element (60 rpm)7,566 Hz
BRF - Rotational frequency – rolling element (60 rpm)3,783 Hz
FTF - Rotational frequency - cage (60 rpm)0,436 Hz
ABUTMENT
da max - Max shoulder diameter IR0 mm
da min - Min shoulder diameter IR111 mm
db - Min diameter for Sleeve106 mm
Ce - Min length fro Sleeve6 mm
Da max - Max shoulder diameter OR154 mm
ra max - Max shaft & housing fillet radius2 mm
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