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 information
| PRODUCT DEFINITION | |
|---|---|
| Brand | SNR |
| d - Internal diameter | 35 mm |
| D - External diameter | 72 mm |
| B - Bearing/Inner ring width | 23 mm |
| d2 - External diameter inner ring | 45,1 mm |
| D1 - Inner diameter outer ring | 63 mm |
| rs - Min fillet radius | 1,1 mm |
| Number of lubrication holes | 3 |
| b - Groove width | 4,9 mm |
| k - Hole diameter | 2 mm |
| Radial clearance class | C3 |
| Mass | 0,42 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 100 kN |
| C0 - Static load | 92 kN |
| Cu - Fatigue limit load | 11,2 kN |
| e - Coefficient | 0.31 |
| Y0 - Static axial load coefficient | 2.16 |
| Y1 - Lower axial load coefficient | 2.21 |
| Y2 - Upper axial load coefficient | 3.29 |
| N ref - Reference thermal speed | 9500 tr/min |
| N lim - Mechanical Limit Speed | 12000 tr/min |
| Tmin - Min operating temperature | -20 °C |
| Tmax - Max operating temperature | 120 °C |
| BEARING FREQUENCIES | |
|---|---|
| BPFO - Over rolling frequency on outer ring (60 rpm) | 6,675 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 9,325 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 5,753 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 2,877 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 | 42 mm |
| Da max - Max shoulder diameter OR | 65 mm |
| ra max - Max shaft & housing fillet radius | 1 mm |
