Spherical roller bearing, with central rib on inner ring, 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.
Log in
To add this product to your basketDocumentation
Product information
| PRODUCT DEFINITION | |
|---|---|
| Brand | SNR |
| d - Internal diameter | 180 mm |
| D - External diameter | 300 mm |
| B - Bearing/Inner ring width | 118 mm |
| d2 - External diameter inner ring | 200,263 mm |
| D1 - Inner diameter outer ring | 260,4 mm |
| rs - Min fillet radius | 3 mm |
| Number of lubrication holes | 3 ou 4 |
| b - Groove width | 15,333 mm |
| k - Hole diameter | 7 mm |
| Radial clearance class | C3 |
| Mass | 32,13 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 1600 kN |
| C0 - Static load | 2180 kN |
| Cu - Fatigue limit load | 204 kN |
| e - Coefficient | 0.36 |
| Y0 - Static axial load coefficient | 1.83 |
| Y1 - Lower axial load coefficient | 1.87 |
| Y2 - Upper axial load coefficient | 2.79 |
| N ref - Reference thermal speed | 1200 tr/min |
| N lim - Mechanical Limit Speed | 1700 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) | 8,703 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 11,297 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 7,373 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 3,687 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,435 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 0 mm |
| da min - Min shoulder diameter IR | 194 mm |
| Da max - Max shoulder diameter OR | 286 mm |
| ra max - Max shaft & housing fillet radius | 2,5 mm |
