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.
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Product information
| PRODUCT DEFINITION | |
|---|---|
| Brand | SNR |
| d - Internal diameter | 140 mm |
| D - External diameter | 225 mm |
| B - Bearing/Inner ring width | 68 mm |
| D1 - Inner diameter outer ring | 202 mm |
| rs - Min fillet radius | 2,1 mm |
| Number of lubrication holes | 3 ou 4 |
| b - Groove width | 10,12 mm |
| k - Hole diameter | 5 mm |
| Radial clearance class | C4 |
| Mass | 11,3 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 802 kN |
| C0 - Static load | 1030 kN |
| Cu - Fatigue limit load | 104 kN |
| e - Coefficient | 0.26 |
| Y0 - Static axial load coefficient | 2.5 |
| Y1 - Lower axial load coefficient | 2.55 |
| Y2 - Upper axial load coefficient | 3.8 |
| N ref - Reference thermal speed | 2200 tr/min |
| N lim - Mechanical Limit Speed | 2800 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) | 9,64 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 12,36 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 7,844 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 3,922 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,438 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 0 mm |
| da min - Min shoulder diameter IR | 152 mm |
| Da max - Max shoulder diameter OR | 213 mm |
| ra max - Max shaft & housing fillet radius | 2 mm |
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