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-78551
- 4T-78214C
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Product information
| PRODUCT DEFINITION | |
|---|---|
| Brand | NTN |
| d - Internal diameter | 53,975 mm |
| D - External diameter | 140,03 mm |
| B - Bearing/Inner ring width | 33,236 mm |
| C - Outer ring width | 23,52 mm |
| T - Total width | 36,512 mm |
| d1 - External diameter inner ring | 103,5 mm |
| a - Charge load application point | 45,012 mm |
| Mass | 2,77 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 190 kN |
| C0 - Static load | 212 kN |
| Cu - Fatigue limit load | 25,9 kN |
| A2 - Rating life coefficient | 1 |
| e - Coefficient | 0.87 |
| Y0 - Static axial load coefficient | 0.38 |
| Y2 - Upper axial load coefficient | 0.69 |
| N lim - Oil lubrication limit speed | 3400 tr/min |
| N lim - Grease lubrication limit speed | 2600 tr/min |
| Tmin - Min operating temperature | -40 °C |
| Tmax - Max operating temperature | 120 °C |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 77 mm |
| db min - Min IR shoulder diameter | 79 mm |
| Da max - Max shoulder diameter OR | 117 mm |
| Db min - Min OR shoulder diameter | 132 mm |
| ra max - Max fillet radius | 0,8 mm |
| r1a - Max fillet radius | 2,3 mm |
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