Spherical roller bearing, one-piece machined cage, 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 information
| PRODUCT DEFINITION | |
|---|---|
| Brand | SNR |
| d - Internal diameter | 190 mm |
| D - External diameter | 290 mm |
| B - Bearing/Inner ring width | 100 mm |
| D1 - Inner diameter outer ring | 263,2 mm |
| rs - Min fillet radius | 2,1 mm |
| Number of lubrication holes | 3 |
| b - Groove width | 13 mm |
| k - Hole diameter | 6 mm |
| Radial clearance class | C3 |
| Mass | 23,733 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 1360 kN |
| C0 - Static load | 2000 kN |
| Cu - Fatigue limit load | 187 kN |
| e - Coefficient | 0.3 |
| Y0 - Static axial load coefficient | 2.18 |
| Y1 - Lower axial load coefficient | 2.23 |
| Y2 - Upper axial load coefficient | 3.32 |
| N ref - Reference thermal speed | 1300 tr/min |
| N lim - Mechanical Limit Speed | 2100 tr/min |
| Tmin - Min operating temperature | -40 °C |
| Tmax - Max operating temperature | 200 °C |
| BEARING FREQUENCIES | |
|---|---|
| BPFO - Over rolling frequency on outer ring (60 rpm) | 11,134 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 13,866 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 8,86 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 4,43 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,445 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 0 mm |
| da min - Min shoulder diameter IR | 202 mm |
| Da max - Max shoulder diameter OR | 278 mm |
| ra max - Max shaft & housing fillet radius | 2 mm |
