Spherical roller bearing, with central rib on inner ring, 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 | 210 mm |
| B - Bearing/Inner ring width | 80 mm |
| d2 - External diameter inner ring | 146 mm |
| D1 - Inner diameter outer ring | 183,2 mm |
| rs - Min fillet radius | 2 mm |
| Number of lubrication holes | 3 |
| b - Groove width | 10,32 mm |
| k - Hole diameter | 4,5 mm |
| Radial clearance class | CN |
| Mass | 10,5 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 795 kN |
| C0 - Static load | 1070 kN |
| Cu - Fatigue limit load | 111 kN |
| e - Coefficient | 0.34 |
| Y0 - Static axial load coefficient | 1.92 |
| Y1 - Lower axial load coefficient | 1.96 |
| Y2 - Upper axial load coefficient | 2.92 |
| N ref - Reference thermal speed | 1800 tr/min |
| N lim - Mechanical Limit Speed | 2400 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) | 9,685 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 12,315 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 8,037 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 4,019 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,44 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 0 mm |
| da min - Min shoulder diameter IR | 141 mm |
| Da max - Max shoulder diameter OR | 199 mm |
| ra max - Max shaft & housing fillet radius | 2 mm |
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