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.
Log in
To add this product to your basketDocumentation
Product information
| PRODUCT DEFINITION | |
|---|---|
| Brand | SNR |
| d - Internal diameter | 220 mm |
| D - External diameter | 300 mm |
| B - Bearing/Inner ring width | 60 mm |
| D1 - Inner diameter outer ring | 277,5 mm |
| rs - Min fillet radius | 2,1 mm |
| Number of lubrication holes | 3 ou 4 |
| b - Groove width | 13,7 mm |
| k - Hole diameter | 6 mm |
| Radial clearance class | CN |
| Mass | 12,4 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 741 kN |
| C0 - Static load | 1210 kN |
| Cu - Fatigue limit load | 111 kN |
| e - Coefficient | 0.18 |
| Y0 - Static axial load coefficient | 3.67 |
| Y1 - Lower axial load coefficient | 3.76 |
| Y2 - Upper axial load coefficient | 5.59 |
| N ref - Reference thermal speed | 1800 tr/min |
| N lim - Mechanical Limit Speed | 2200 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) | 17,632 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 20,368 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 13,723 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 6,862 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,464 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 0 mm |
| da min - Min shoulder diameter IR | 230,2 mm |
| Da max - Max shoulder diameter OR | 289,8 mm |
| ra max - Max shaft & housing fillet radius | 2 mm |
