Spherical roller bearing, with central rib on inner ring, 2-part machined cage centred on inner ring, groove and lubrication holes on outer ring
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 | NTN |
| d - Internal diameter | 600 mm |
| D - External diameter | 870 mm |
| B - Bearing/Inner ring width | 272 mm |
| d2 - External diameter inner ring | 0 mm |
| D1 - Inner diameter outer ring | 770 mm |
| rs - Min fillet radius | 6 mm |
| Number of lubrication holes | 8 |
| b - Groove width | 33 mm |
| k - Hole diameter | 20 mm |
| Radial clearance class | CN |
| Mass | 544 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 7150 kN |
| C0 - Static load | 15600 kN |
| Cu - Fatigue limit load | 750 kN |
| e - Coefficient | 0.29 |
| Y0 - Static axial load coefficient | 2.28 |
| Y1 - Lower axial load coefficient | 2.33 |
| Y2 - Upper axial load coefficient | 3.47 |
| Nlim - Oil lubrication limit speed | 370 tr/min |
| Nlim - Grease lubrication limit speed | 280 tr/min |
| Tmin - Min operating temperature | -40 °C |
| Tmax - Max operating temperature | 120 °C |
| ABUTMENT | |
|---|---|
| da min - Min shoulder diameter IR | 628 mm |
| Da max - Max shoulder diameter OR | 842 mm |
| ra max - Max shaft & housing fillet radius | 5 mm |
