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 | 130 mm |
| D - External diameter | 200 mm |
| B - Bearing/Inner ring width | 69 mm |
| d2 - External diameter inner ring | 143 mm |
| D1 - Inner diameter outer ring | 178,6 mm |
| rs - Min fillet radius | 2 mm |
| Number of lubrication holes | 3 |
| b - Groove width | 8,34 mm |
| k - Hole diameter | 4 mm |
| Radial clearance class | C3 |
| Mass | 7,74 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 684 kN |
| C0 - Static load | 909 kN |
| Cu - Fatigue limit load | 95,1 kN |
| e - Coefficient | 0.31 |
| Y0 - Static axial load coefficient | 2.13 |
| Y1 - Lower axial load coefficient | 2.18 |
| Y2 - Upper axial load coefficient | 3.25 |
| N ref - Reference thermal speed | 2300 tr/min |
| N lim - Mechanical Limit Speed | 3100 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) | 10,155 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 12,845 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 8,257 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 4,129 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,442 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 0 mm |
| da min - Min shoulder diameter IR | 138,8 mm |
| Da max - Max shoulder diameter OR | 191,2 mm |
| ra max - Max shaft & housing fillet radius | 2 mm |
