Name: 22308EF800
SKU: 22308EF800-SNR

Spherical roller bearing for vibratory applications, one-piece machined cage, groove and lubrication holes on outer ring, special C4 class clearance

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.

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PRODUCT DEFINITION
Brand	SNR
d - Internal diameter	40 mm
D - External diameter	90 mm
B - Bearing/Inner ring width	33 mm
d2 - External diameter inner ring	0 mm
D1 - Inner diameter outer ring	77 mm
rs - Min fillet radius	1,5 mm
Number of lubrication holes	3
b - Groove width	6 mm
k - Hole diameter	3 mm
Radial clearance class	C4 Special
Mass	1,021 kg

PRODUCT PERFORMANCE
C - Dynamic load	169 kN
C0 - Static load	152 kN
Cu - Fatigue limit load	18,5 kN
e - Coefficient	0.36
Y0 - Static axial load coefficient	1.83
Y1 - Lower axial load coefficient	1.87
Y2 - Upper axial load coefficient	2.79
N ref - Reference thermal speed	5800 tr/min
N lim - Mechanical Limit Speed	7400 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)	5,672 Hz
BPFI - Over rolling frequency on inner (60 rpm)	8,328 Hz
BSF - Over rolling frequency on rolling element (60 rpm)	4,943 Hz
BRF - Rotational frequency – rolling element (60 rpm)	2,472 Hz
FTF - Rotational frequency - cage (60 rpm)	0,405 Hz

ABUTMENT
da max - Max shoulder diameter IR	0 mm
da min - Min shoulder diameter IR	49 mm
Da max - Max shoulder diameter OR	81 mm
ra max - Max shaft & housing fillet radius	1,5 mm

Spherical roller bearings

22308EF800 - SNR

Documentation

Product information

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Spherical roller bearings

22308EF800 - SNR

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