In the ball bearing and high precision bearing ranges, the high precision angular contact ball bearing solves the maximum reliability constraints with increased performance in terms of rigidity, speed, capacity and precision. This bearing is recommended for demanding applications in terms of precision such as machine tool spindles. NTN-SNR is getting under ranges dedicated to requirements of speed, sealing, specific greasing, etc.
3D file
Technical datasheet
| PRODUCT DEFINITION | |
|---|---|
| Brand | SNR |
| d - Internal diameter | 12 mm |
| D - External diameter | 28 mm |
| B - Bearing/Inner ring width | 8 mm |
| d1 - External diameter inner ring | 16,65 mm |
| D1 - Inner diameter outer ring | 23,4 mm |
| D2 - Inner diameter outer ring | 25,72 mm |
| a - Charge load application point | 7 mm |
| α - Contact angle | 15 ° |
| rs - Min fillet radius | 0,3 mm |
| r1s - Min fillet radius | 0,3 mm |
| Precision class | P4 |
| Mass | 0,02 kg |
| PRODUCT PERFORMANCE | |
|---|---|
| C - Dynamic load | 6,1 kN |
| C0 - Static load | 3,2 kN |
| Cu - Fatigue limit load | 0,15 kN |
| f0 - Coefficient | 13.2 |
| Preload level | 7 |
| Preload value | 0,03 kN |
| Tmin - Min operating temperature | -30 °C |
| Tmax - Max operating temperature | 120 °C |
| BEARING FREQUENCIES | |
|---|---|
| BPFO - Characteristic outer ring frequency (60 rpm) | 4,235 Hz |
| BPFI - Characteristic inner ring frequency (60 rpm) | 6,765 Hz |
| FTF - Characteristic cage frequency (60 rpm) | 0,385 Hz |
| BSF - Characteristic rolling element frequency (60 rpm) | 3,978 Hz |
| ABUTMENT | |
|---|---|
| da min - Min shoulder diameter IR | 14,5 mm |
| db min - Min IR shoulder diameter | 14,5 mm |
| Da max - Max shoulder diameter OR | 25,5 mm |
| Db max - Max OR shoulder diameter | 25,5 mm |
| r1a - Max fillet radius | 0,3 mm |
| ra max - Max shaft & housing fillet radius | 0,3 mm |
