Tapered roller bearing, pressed steel cage
The single row tapered roller bearing is available in metric dimensions (ISO 355 and JIS B 1512 standards) and in inches (ABMA standard, metric series including J). The single row in tapered roller bearing range, is the most widely used and is generally mounted in opposition.
This kit contains the following reference(s)
- 4T-772
- 4T-780
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Product information
| PRODUCT DEFINITION | |
|---|---|
| Brand | NTN |
| d - Internal diameter | 101,6 mm |
| D - External diameter | 180,975 mm |
| B - Bearing/Inner ring width | 48,006 mm |
| C - Outer ring width | 38,1 mm |
| T - Total width | 47,625 mm |
| d1 - External diameter inner ring | 139 mm |
| a - Charge load application point | 39,525 mm |
| rs - Min fillet radius | 3,5 mm |
| r1s - Min fillet radius | 3,3 mm |
| Mass | 5,11 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 285 kN |
| C0 - Static load | 430 kN |
| Cu - Fatigue limit load | 47,5 kN |
| A2 - Rating life coefficient | 1 |
| e - Coefficient | 0.39 |
| Y0 - Static axial load coefficient | 0.86 |
| Y2 - Upper axial load coefficient | 1.56 |
| N lim - Oil lubrication limit speed | 2700 tr/min |
| N lim - Grease lubrication limit speed | 2000 tr/min |
| Tmin - Min operating temperature | -40 °C |
| Tmax - Max operating temperature | 120 °C |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 113 mm |
| db min - Min IR shoulder diameter | 119 mm |
| Da max - Max shoulder diameter OR | 161 mm |
| Db min - Min OR shoulder diameter | 168 mm |
| ra max - Max fillet radius | 3,5 mm |
| r1a - Max fillet radius | 3,3 mm |
