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.
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Product information
| PRODUCT DEFINITION | |
|---|---|
| Brand | NTN |
| d - Internal diameter | 25 mm |
| D - External diameter | 62 mm |
| B - Bearing/Inner ring width | 24 mm |
| C - Outer ring width | 20 mm |
| T - Total width | 25,25 mm |
| d1 - External diameter inner ring | 42,5 mm |
| a - Charge load application point | 16 mm |
| rs - Min fillet radius | 1,5 mm |
| r1s - Min fillet radius | 1,5 mm |
| Mass | 0,377 kg |
| ISO 355 reference | T2FD025 |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 68 kN |
| C0 - Static load | 64,5 kN |
| Cu - Fatigue limit load | 7,9 kN |
| A2 - Rating life coefficient | 1 |
| e - Coefficient | 0.3 |
| Y0 - Static axial load coefficient | 1.1 |
| Y2 - Upper axial load coefficient | 2 |
| N lim - Oil lubrication limit speed | 8900 tr/min |
| N lim - Grease lubrication limit speed | 6700 tr/min |
| Tmin - Min operating temperature | -40 °C |
| Tmax - Max operating temperature | 120 °C |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 32 mm |
| db min - Min IR shoulder diameter | 33,5 mm |
| Da min - Min shoulder diameter OR | 52 mm |
| Da max - Max shoulder diameter OR | 53,5 mm |
| Db min - Min OR shoulder diameter | 57 mm |
| Ca - Min clearance | 3 mm |
| Cb - Min clearance | 5 mm |
| ra max - Max fillet radius | 1,5 mm |
| r1a - Max fillet radius | 1,5 mm |
