Spherical roller bearing for vibratory applications, one-piece machined cage, groove and lubrication holes on outer ring, special CN 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 | 160 mm |
| D - External diameter | 340 mm |
| B - Bearing/Inner ring width | 114 mm |
| d2 - External diameter inner ring | 0 mm |
| D1 - Inner diameter outer ring | 295,2 mm |
| rs - Min fillet radius | 4 mm |
| Number of lubrication holes | 3 ou 8 |
| b - Groove width | 20,26 mm |
| k - Hole diameter | 10 mm |
| Radial clearance class | CN Special |
| Mass | 50,7 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 1950 kN |
| C0 - Static load | 2210 kN |
| Cu - Fatigue limit load | 202 kN |
| e - Coefficient | 0.33 |
| Y0 - Static axial load coefficient | 1.98 |
| Y1 - Lower axial load coefficient | 2.03 |
| Y2 - Upper axial load coefficient | 3.02 |
| N ref - Reference thermal speed | 1400 tr/min |
| N lim - Mechanical Limit Speed | 1900 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) | 6,581 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 9,419 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 5,33 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 2,665 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,411 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 0 mm |
| da min - Min shoulder diameter IR | 177 mm |
| Da max - Max shoulder diameter OR | 323 mm |
| ra max - Max shaft & housing fillet radius | 3 mm |
