
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.
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Product information
PRODUCT DEFINITION | |
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Brand | SNR |
d - Internal diameter | 190 mm |
D - External diameter | 400 mm |
B - Bearing/Inner ring width | 132 mm |
d2 - External diameter inner ring | 0 mm |
D1 - Inner diameter outer ring | 345,6 mm |
rs - Min fillet radius | 5 mm |
Number of lubrication holes | 3 ou 8 |
b - Groove width | 20,8 mm |
k - Hole diameter | 10 mm |
Associated sleeve reference | H2338 |
Radial clearance class | C3 |
Mass | 79,87 kg |
PRODUCT PERFORMANCE | |
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C - Dynamic load | 2600 kN |
C0 - Static load | 3120 kN |
Cu - Fatigue limit load | 272 kN |
e - Coefficient | 0.32 |
Y0 - Static axial load coefficient | 2.07 |
Y1 - Lower axial load coefficient | 2.12 |
Y2 - Upper axial load coefficient | 3.15 |
N ref - Reference thermal speed | 1100 tr/min |
N lim - Mechanical Limit Speed | 1600 tr/min |
Tmin - Min operating temperature | -40 °C |
Tmax - Max operating temperature | 200 °C |
BEARING FREQUENCIES | |
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BPFO - Over rolling frequency on outer ring (60 rpm) | 7,064 Hz |
BPFI - Over rolling frequency on inner (60 rpm) | 9,937 Hz |
BSF - Over rolling frequency on rolling element (60 rpm) | 5,624 Hz |
BRF - Rotational frequency – rolling element (60 rpm) | 2,812 Hz |
FTF - Rotational frequency - cage (60 rpm) | 0,416 Hz |
ABUTMENT | |
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da max - Max shoulder diameter IR | 0 mm |
da min - Min shoulder diameter IR | 210 mm |
db - Min diameter for Sleeve | 206 mm |
Ce - Min length fro Sleeve | 9 mm |
Da max - Max shoulder diameter OR | 380 mm |
ra max - Max shaft & housing fillet radius | 4 mm |