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 | 75 mm |
| D - External diameter | 130 mm |
| B - Bearing/Inner ring width | 25 mm |
| C - Outer ring width | 22 mm |
| T - Total width | 27,25 mm |
| d1 - External diameter inner ring | 99,9 mm |
| a - Charge load application point | 27,5 mm |
| rs - Min fillet radius | 2 mm |
| r1s - Min fillet radius | 1,5 mm |
| Mass | 1,362 kg |
| ISO 355 reference | T4DB075 |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 152 kN |
| A2 - Rating life coefficient | 1 |
| C0 - Static load | 185 kN |
| Cu - Fatigue limit load | 22,4 kN |
| e - Coefficient | 0.43 |
| Y0 - Static axial load coefficient | 0.76 |
| Y2 - Upper axial load coefficient | 1.38 |
| N ref - Reference thermal speed | 3500 tr/min |
| N lim - Mechanical Limit Speed | 5500 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) | 8,632 Hz |
| BPFI - Over rolling frequency on inner (60 rpm) | 11,368 Hz |
| BSF - Over rolling frequency on rolling element (60 rpm) | 6,892 Hz |
| BRF - Rotational frequency – rolling element (60 rpm) | 3,446 Hz |
| FTF - Rotational frequency - cage (60 rpm) | 0,432 Hz |
| ABUTMENT | |
|---|---|
| da max - Max shoulder diameter IR | 85 mm |
| db min - Min IR shoulder diameter | 85 mm |
| Da min - Min shoulder diameter OR | 115 mm |
| Da max - Max shoulder diameter OR | 121,5 mm |
| Db min - Min OR shoulder diameter | 124 mm |
| Ca - Min clearance | 4 mm |
| Cb - Min clearance | 5 mm |
| ra max - Max fillet radius | 2 mm |
| r1a - Max fillet radius | 1,5 mm |
