Spherical roller bearing, pressed steel 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 | 120 mm |
| D - External diameter | 215 mm |
| B - Bearing/Inner ring width | 76 mm |
| d2 - External diameter inner ring | 139,9 mm |
| D1 - Inner diameter outer ring | 189 mm |
| rs - Min fillet radius | 2,1 mm |
| Number of lubrication holes | 3 |
| b - Groove width | 11,01 mm |
| k - Hole diameter | 5 mm |
| Radial clearance class | C4 |
| Mass | 11,89 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 857 kN |
| C0 - Static load | 998 kN |
| Cu - Fatigue limit load | 104 kN |
| e - Coefficient | 0.32 |
| Y0 - Static axial load coefficient | 2.04 |
| Y1 - Lower axial load coefficient | 2.09 |
| Y2 - Upper axial load coefficient | 3.11 |
| N ref - Reference thermal speed | 2100 tr/min |
| N lim - Mechanical Limit Speed | 2800 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) | 7,624 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 10,376 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 6,244 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 3,122 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,424 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 0 mm |
| da min - Min shoulder diameter IR | 132 mm |
| Da max - Max shoulder diameter OR | 203 mm |
| ra max - Max shaft & housing fillet radius | 2 mm |
