High precision angular contact ball bearing, laminated resin cage centred on outer ring
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.
CAD file
Technical datasheet
Specs
PRODUCT DIMENSIONS | |
|---|---|
| Internal diameter (d) | 120 mm |
| External diameter (D) | 180 mm |
| Bearing/Inner ring width (B) | 28 mm |
| External diameter inner ring d1 | 139,4 mm |
| Inner diameter outer ring (D1) | 160,6 mm |
| Inner diameter outer ring D2 | 168,91 mm |
| Charge load application point a | 34 mm |
| Contact angle α | 15 ° |
| Min fillet radius (rs) | 2 mm |
| Min fillet radius r1s | 1 mm |
| Coefficient f0 | 16.103 |
| Precision class | P4 |
| Mass | 2,15 kg |
| Brand | SNR |
PRODUCT PERFORMANCE | |
|---|---|
| Dynamic load (C) | 100 kN |
| Static load (C0) | 109 kN |
| Fatigue limit load (Cu) | 4,75 kN |
| Axial displacement K Factor | 0.84 |
| Preload level | 7 |
| Preload value | 530000 kN |
| Axial rigidity | 139 N/µm |
| Radial rigidity | 812 N/µm |
| Min operating temperature (Tmin) | -30 °C |
| Max operating temperature (Tmax) | 120 °C |
| Nlim (oil) | 11500 tr/min |
| Nlim (grease) | 7700 tr/min |
| Characteristic cage frequency, FTF | 0,444 Hz |
| Characteristic rolling element frequency, BSF | 8,481 Hz |
| Characteristic outer ring frequency, BPF0 | 10,207 Hz |
| Characteristic inner ring frequency, BPFI | 12,793 Hz |
ABUTMENT | |
|---|---|
| Min shoulder diameter IR (da min) | 130 mm |
| Min IR shoulder diameter (db min) | 130 mm |
| Max shoulder diameter OR (Da max) | 170 mm |
| Max OR shoulder diameter (Db max) | 170 mm |
| Maxi fillet radius r1a | 1 mm |
| Max shaft & housing fillet radius (ra max) | 2 mm |
