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.
Technical datasheet
| PRODUCT DEFINITION | |
|---|---|
| Brand | SNR |
| d - Internal diameter | 20 mm |
| D - External diameter | 47 mm |
| B - Bearing/Inner ring width | 14 mm |
| C - Outer ring width | 12 mm |
| T - Total width | 15,25 mm |
| d1 - External diameter inner ring | 33,9 mm |
| a - Charge load application point | 11,3 mm |
| rs - Min fillet radius | 1 mm |
| r1s - Min fillet radius | 1 mm |
| Mass | 0,126 kg |
| ISO 355 reference | T2DB020 |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 29,6 kN |
| A2 - Rating life coefficient | 1 |
| C0 - Static load | 30,6 kN |
| Cu - Fatigue limit load | 3,75 kN |
| e - Coefficient | 0.35 |
| Y0 - Static axial load coefficient | 0.96 |
| Y2 - Upper axial load coefficient | 1.74 |
| Nref - Reference thermal speed | 10000 tr/min |
| Nlim - Mechanical Limit Speed | 17000 tr/min |
| Tmin - Min operating temperature | -40 °C |
| Tmax - Max operating temperature | 120 °C |
| BEARING FREQUENCIES | |
|---|---|
| BPFO - Characteristic outer ring frequency (60 rpm) | 6,158 Hz |
| BPFI - Characteristic inner ring frequency (60 rpm) | 8,842 Hz |
| FTF - Characteristic cage frequency (60 rpm) | 0,411 Hz |
| BSF - Characteristic rolling element frequency (60 rpm) | 5,274 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 27 mm |
| db min - Min IR shoulder diameter | 25,5 mm |
| Da min - Min shoulder diameter OR | 40 mm |
| Da max - Max shoulder diameter OR | 41,5 mm |
| Db min - Min OR shoulder diameter | 44 mm |
| Ca - Min clearance | 2 mm |
| Cb - Min clearance | 3 mm |
| ra max - Max fillet radius | 1 mm |
| r1a - Max fillet radius | 1 mm |
