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 | SNR |
| d - Internal diameter | 30 mm |
| D - External diameter | 62 mm |
| B - Bearing/Inner ring width | 20 mm |
| C - Outer ring width | 17 mm |
| T - Total width | 21,25 mm |
| d1 - External diameter inner ring | 45,5 mm |
| a - Charge load application point | 15,65 mm |
| rs - Min fillet radius | 1 mm |
| r1s - Min fillet radius | 1 mm |
| Mass | 0,287 kg |
| ISO 355 reference | T3DC030 |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 56,8 kN |
| A2 - Rating life coefficient | 1 |
| C0 - Static load | 63,7 kN |
| Cu - Fatigue limit load | 7,8 kN |
| e - Coefficient | 0.37 |
| Y0 - Static axial load coefficient | 0.88 |
| Y2 - Upper axial load coefficient | 1.6 |
| N ref - Reference thermal speed | 6700 tr/min |
| N lim - Mechanical Limit Speed | 12000 tr/min |
| Tmin - Min operating temperature | -40 °C |
| Tmax - Max operating temperature | 120 °C |
| BEARING FREQUENCIES | |
|---|---|
| BPFO - Over rolling frequency on outer ring (60 rpm) | 7,119 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 9,881 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 5,814 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 2,907 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,419 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 37 mm |
| db min - Min IR shoulder diameter | 36 mm |
| Da min - Min shoulder diameter OR | 52 mm |
| Da max - Max shoulder diameter OR | 56 mm |
| Db min - Min OR shoulder diameter | 59 mm |
| Ca - Min clearance | 3 mm |
| Cb - Min clearance | 4 mm |
| ra max - Max fillet radius | 1 mm |
| r1a - Max fillet radius | 1 mm |
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