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Spherical roller bearings

22240EMKW33C4 - SNR

22240EMKW33C4

Spherical roller bearing, one-piece machined 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 diameter200 mm
D - External diameter360 mm
B - Bearing/Inner ring width98 mm
D1 - Inner diameter outer ring322,3 mm
rs - Min fillet radius4 mm
Number of lubrication holes3 ou 8
b - Groove width20,01 mm
k - Hole diameter10 mm
Associated sleeve referenceH3140
Radial clearance classC4
Mass42 kg
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PRODUCT PERFORMANCE
C - Dynamic load1810 kN
C0 - Static load2100 kN
Cu - Fatigue limit load187 kN
e - Coefficient0.25
Y0 - Static axial load coefficient2.68
Y1 - Lower axial load coefficient2.74
Y2 - Upper axial load coefficient4.08
N ref - Reference thermal speed1500 tr/min
N lim - Mechanical Limit Speed2300 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature200 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)7,568 Hz
BPFI - Over rolling frequency on inner (60 rpm)10,432 Hz
BSF - Over rolling frequency on rolling element (60 rpm)6,043 Hz
BRF - Rotational frequency – rolling element (60 rpm)3,022 Hz
FTF - Rotational frequency - cage (60 rpm)0,42 Hz
ABUTMENT
da max - Max shoulder diameter IR0 mm
da min - Min shoulder diameter IR217 mm
db - Min diameter for Sleeve212 mm
Ce - Min length fro Sleeve24 mm
Da max - Max shoulder diameter OR343 mm
ra max - Max shaft & housing fillet radius3 mm
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