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 | 55 mm |
| D - External diameter | 120 mm |
| B - Bearing/Inner ring width | 29 mm |
| d2 - External diameter inner ring | 73,6 mm |
| D1 - Inner diameter outer ring | 102 mm |
| rs - Min fillet radius | 2 mm |
| Number of lubrication holes | 3 |
| b - Groove width | 10,18 mm |
| k - Hole diameter | 3 mm |
| Radial clearance class | CN |
| Mass | 1,537 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 172 kN |
| C0 - Static load | 164 kN |
| Cu - Fatigue limit load | 20 kN |
| e - Coefficient | 0.24 |
| Y0 - Static axial load coefficient | 2.76 |
| Y1 - Lower axial load coefficient | 2.83 |
| Y2 - Upper axial load coefficient | 4.21 |
| N ref - Reference thermal speed | 5000 tr/min |
| N lim - Mechanical Limit Speed | 6900 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) | 6,26 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 8,74 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 5,81 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 2,905 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,417 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 0 mm |
| da min - Min shoulder diameter IR | 66 mm |
| Da max - Max shoulder diameter OR | 109 mm |
| ra max - Max shaft & housing fillet radius | 2 mm |
