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 | NTN |
d - Internal diameter | 420 mm |
D - External diameter | 620 mm |
B - Bearing/Inner ring width | 200 mm |
d2 - External diameter inner ring | 0 mm |
D1 - Inner diameter outer ring | 551 mm |
rs - Min fillet radius | 5 mm |
Number of lubrication holes | 8 |
b - Groove width | 27 mm |
k - Hole diameter | 16 mm |
Radial clearance class | CN |
Mass | 210 kg |
PRODUCT PERFORMANCE | |
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C - Dynamic load | 4300 kN |
C0 - Static load | 8450 kN |
Cu - Fatigue limit load | 470 kN |
e - Coefficient | 0.32 |
Y0 - Static axial load coefficient | 2.08 |
Y1 - Lower axial load coefficient | 2.13 |
Y2 - Upper axial load coefficient | 3.17 |
N lim - Oil lubrication limit speed | 570 tr/min |
N lim - Grease lubrication limit speed | 440 tr/min |
Tmin - Min operating temperature | -40 °C |
Tmax - Max operating temperature | 120 °C |
ABUTMENT | |
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da min - Min shoulder diameter IR | 442 mm |
Da max - Max shoulder diameter OR | 598 mm |
ra max - Max shaft & housing fillet radius | 4 mm |
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