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 DEFINITION | |
|---|---|
| Brand | SNR |
| d - Internal diameter | 80 mm |
| D - External diameter | 140 mm |
| B - Bearing/Inner ring width | 40 mm |
| d2 - External diameter inner ring | 91,3 mm |
| D1 - Inner diameter outer ring | 131,5 mm |
| rs - Min fillet radius | 2 mm |
| Number of lubrication holes | 0 |
| b - Groove width | 0 mm |
| k - Hole diameter | 0 mm |
| Radial clearance class | CN |
| Mass | 2,43 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 278 kN |
| C0 - Static load | 287 kN |
| Cu - Fatigue limit load | 33,8 kN |
| e - Coefficient | 0.22 |
| Y0 - Static axial load coefficient | 3.07 |
| Y1 - Lower axial load coefficient | 3.14 |
| Y2 - Upper axial load coefficient | 4.67 |
| Nlim - Mechanical Limit Speed | 1200 tr/min |
| Tmin - Min operating temperature | -20 °C |
| Tmax - Max operating temperature | 120 °C |
| BEARING FREQUENCIES | |
|---|---|
| BPFO - Characteristic outer ring frequency (60 rpm) | 8,123 Hz |
| BPFI - Characteristic inner ring frequency (60 rpm) | 10,877 Hz |
| FTF - Characteristic cage frequency (60 rpm) | 0,428 Hz |
| BSF - Characteristic rolling element frequency (60 rpm) | 6,684 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 91,3 mm |
| da min - Min shoulder diameter IR | 91 mm |
| db - Min diameter for Sleeve | 0 mm |
| Da max - Max shoulder diameter OR | 129 mm |
| ra max - Max shaft & housing fillet radius | 2 mm |
