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Spherical roller bearings

22312EF800 - SNR

22312EF800

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.

Documentation

Product information

PRODUCT DEFINITION
BrandSNR
d - Internal diameter60 mm
D - External diameter130 mm
B - Bearing/Inner ring width46 mm
d2 - External diameter inner ring0 mm
D1 - Inner diameter outer ring111,9 mm
rs - Min fillet radius2,1 mm
Number of lubrication holes3
b - Groove width9 mm
k - Hole diameter4 mm
Radial clearance classC4 Special
Mass2,892 kg
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PRODUCT PERFORMANCE
C - Dynamic load340 kN
C0 - Static load319 kN
Cu - Fatigue limit load38,9 kN
e - Coefficient0.35
Y0 - Static axial load coefficient1.91
Y1 - Lower axial load coefficient1.95
Y2 - Upper axial load coefficient2.9
N ref - Reference thermal speed4300 tr/min
N lim - Mechanical Limit Speed5100 tr/min
Tmin - Min operating temperature-40 °C
Tmax - Max operating temperature200 °C
BEARING FREQUENCIES
BPFO - Over rolling frequency on outer ring (60 rpm)5,625 Hz
BPFI - Over rolling frequency on inner (60 rpm)8,375 Hz
BSF - Over rolling frequency on rolling element (60 rpm)4,768 Hz
BRF - Rotational frequency – rolling element (60 rpm)2,384 Hz
FTF - Rotational frequency - cage (60 rpm)0,402 Hz
ABUTMENT
da max - Max shoulder diameter IR0 mm
da min - Min shoulder diameter IR72 mm
Da max - Max shoulder diameter OR118 mm
ra max - Max shaft & housing fillet radius2 mm
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