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 | 110 mm |
| D - External diameter | 240 mm |
| B - Bearing/Inner ring width | 80 mm |
| D1 - Inner diameter outer ring | 208,1 mm |
| rs - Min fillet radius | 3 mm |
| Number of lubrication holes | 3 ou 4 |
| b - Groove width | 15,57 mm |
| k - Hole diameter | 7 mm |
| Radial clearance class | C4 |
| Mass | 17,406 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 975 kN |
| C0 - Static load | 972 kN |
| Cu - Fatigue limit load | 99,4 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 | 2300 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) | 5,601 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 8,399 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 4,696 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 2,348 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,4 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 0 mm |
| da min - Min shoulder diameter IR | 124 mm |
| Da max - Max shoulder diameter OR | 226 mm |
| ra max - Max shaft & housing fillet radius | 2,5 mm |
