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 DEFINITION | |
|---|---|
| Brand | SNR |
| d - Internal diameter | 30 mm |
| D - External diameter | 72 mm |
| B - Bearing/Inner ring width | 19 mm |
| C - Outer ring width | 16 mm |
| T - Total width | 20,75 mm |
| d1 - External diameter inner ring | 49,2 mm |
| a - Charge load application point | 15,4 mm |
| rs - Min fillet radius | 1,5 mm |
| r1s - Min fillet radius | 1,5 mm |
| Mass | 0,387 kg |
| ISO 355 reference | T2FB030 |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 62,1 kN |
| A2 - Rating life coefficient | 1 |
| C0 - Static load | 63,6 kN |
| Cu - Fatigue limit load | 7,8 kN |
| e - Coefficient | 0.32 |
| Y0 - Static axial load coefficient | 1.05 |
| Y2 - Upper axial load coefficient | 1.9 |
| Nref - Reference thermal speed | 7100 tr/min |
| Nlim - Mechanical Limit Speed | 11000 tr/min |
| Tmin - Min operating temperature | -40 °C |
| Tmax - Max operating temperature | 120 °C |
| BEARING FREQUENCIES | |
|---|---|
| BPFO - Characteristic outer ring frequency (60 rpm) | 5,604 Hz |
| BPFI - Characteristic inner ring frequency (60 rpm) | 8,396 Hz |
| FTF - Characteristic cage frequency (60 rpm) | 0,4 Hz |
| BSF - Characteristic rolling element frequency (60 rpm) | 4,713 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 40 mm |
| db min - Min IR shoulder diameter | 38,5 mm |
| Da min - Min shoulder diameter OR | 62 mm |
| Da max - Max shoulder diameter OR | 63,5 mm |
| Db min - Min OR shoulder diameter | 66 mm |
| Ca - Min clearance | 3 mm |
| Cb - Min clearance | 4,5 mm |
| ra max - Max fillet radius | 1,5 mm |
| r1a - Max fillet radius | 1,5 mm |
Documentation