Spherical roller bearing, polyamide 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 DEFINITION | |
|---|---|
| Brand | SNR |
| d - Internal diameter | 50 mm |
| D - External diameter | 110 mm |
| B - Bearing/Inner ring width | 40 mm |
| d2 - External diameter inner ring | 63,8 mm |
| D1 - Inner diameter outer ring | 93,2 mm |
| rs - Min fillet radius | 2 mm |
| Number of lubrication holes | 3 |
| b - Groove width | 7 mm |
| k - Hole diameter | 3,5 mm |
| Radial clearance class | CN |
| Mass | 1,8 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 250 kN |
| C0 - Static load | 232 kN |
| Cu - Fatigue limit load | 28,3 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 |
| Nref - Reference thermal speed | 4900 tr/min |
| Nlim - Mechanical Limit Speed | 6100 tr/min |
| Tmin - Min operating temperature | -20 °C |
| Tmax - Max operating temperature | 120 °C |
| BEARING FREQUENCIES | |
|---|---|
| BPFO - Characteristic outer ring frequency (60 rpm) | 5,662 Hz |
| BPFI - Characteristic inner ring frequency (60 rpm) | 8,338 Hz |
| FTF - Characteristic cage frequency (60 rpm) | 0,404 Hz |
| BSF - Characteristic rolling element frequency (60 rpm) | 4,901 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 0 mm |
| da min - Min shoulder diameter IR | 61 mm |
| Da max - Max shoulder diameter OR | 99 mm |
| ra max - Max shaft & housing fillet radius | 2 mm |
