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 | 58 mm |
| d2 - External diameter inner ring | 141,9 mm |
| D1 - Inner diameter outer ring | 192,3 mm |
| rs - Min fillet radius | 2,1 mm |
| Number of lubrication holes | 3 |
| b - Groove width | 12,16 mm |
| k - Hole diameter | 6 mm |
| Radial clearance class | C2 |
| Mass | 8,693 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 688 kN |
| C0 - Static load | 753 kN |
| Cu - Fatigue limit load | 78,2 kN |
| e - Coefficient | 0.25 |
| Y0 - Static axial load coefficient | 2.68 |
| Y1 - Lower axial load coefficient | 2.74 |
| Y2 - Upper axial load coefficient | 4.08 |
| N ref - Reference thermal speed | 3000 tr/min |
| N lim - Mechanical Limit Speed | 3800 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) | 7,618 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 10,382 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 6,274 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 3,137 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,423 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 |
