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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- Detailed technical sheet
PRODUCT DEFINITION | |
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Brand | NTN |
d - Internal diameter | 40 mm |
D - External diameter | 80 mm |
B - Bearing/Inner ring width | 23 mm |
d2 - External diameter inner ring | 50,2 mm |
D1 - Inner diameter outer ring | 70,8 mm |
rs - Min fillet radius | 1,1 mm |
Number of lubrication holes | 3 |
b - Groove width | 5,38 mm |
k - Hole diameter | 2,5 mm |
Associated sleeve reference | H308 |
Radial clearance class | CN |
Mass | 0,5 kg |
PRODUCT PERFORMANCE | |
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C - Dynamic load | 116 kN |
C0 - Static load | 105 kN |
Cu - Fatigue limit load | 12,8 kN |
e - Coefficient | 0.27 |
Y0 - Static axial load coefficient | 2.41 |
Y1 - Lower axial load coefficient | 2.47 |
Y2 - Upper axial load coefficient | 3.68 |
Nref - Reference thermal speed | 8200 tr/min |
Nlim - Mechanical Limit Speed | 11000 tr/min |
Tmin - Min operating temperature | -40 °C |
Tmax - Max operating temperature | 200 °C |
ABUTMENT | |
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da min - Min shoulder diameter IR | 47 mm |
db - Min diameter for Sleeve | 44 mm |
Ce - Min length fro Sleeve | 5 mm |
Da max - Max shoulder diameter OR | 73 mm |
ra max - Max shaft & housing fillet radius | 1 mm |