Spherical roller bearing, pressed steel cage, non ISO width, contact seals on both sides
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 | 75 mm |
| D - External diameter | 130 mm |
| B - Bearing/Inner ring width | 38 mm |
| d2 - External diameter inner ring | 85,1 mm |
| D1 - Inner diameter outer ring | 121,6 mm |
| rs - Min fillet radius | 1,5 mm |
| Number of lubrication holes | 0 |
| b - Groove width | 0 mm |
| k - Hole diameter | 0 mm |
| Radial clearance class | CN |
| Mass | 1,94 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 244 kN |
| C0 - Static load | 249 kN |
| Cu - Fatigue limit load | 29,9 kN |
| e - Coefficient | 0.22 |
| Y0 - Static axial load coefficient | 3.06 |
| Y1 - Lower axial load coefficient | 3.13 |
| Y2 - Upper axial load coefficient | 4.67 |
| N lim - Mechanical Limit Speed | 1300 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) | 8,127 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 10,873 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 6,707 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 3,354 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,428 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 0 mm |
| da min - Min shoulder diameter IR | 84 mm |
| db - Min diameter for Sleeve | 0 mm |
| Da max - Max shoulder diameter OR | 121 mm |
| ra max - Max shaft & housing fillet radius | 1,5 mm |
