Spherical roller bearing for vibratory applications, one-piece machined cage, groove and lubrication holes on outer ring, special C4 class clearance
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 | 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 |
| Radial clearance class | C4 Special |
| Mass | 76,2 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| 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 | |
|---|---|
| BPFO - Over rolling frequency on outer ring (60 rpm) | 7,064 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 9,936 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 5,624 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,416 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 0 mm |
| da min - Min shoulder diameter IR | 210 mm |
| Da max - Max shoulder diameter OR | 380 mm |
| ra max - Max shaft & housing fillet radius | 4 mm |
