K81224 NTN Nlim (oil) 1.700 rpm Thrust roller bearings
| Dc1 | 120 mm |
| Dc | 170 mm |
| Lw | 15 mm |
| Bearing ring (inner ring) WS | WS81224 |
| Bearing ring (outer ring) GS | GS81224 |
| Ea | 160 mm |
| Eb | 129.2 mm |
| Cage assembly mass | 0.73 kg |
| Ca | 264 kN |
| C0a | 930 kN |
| Nlim (grease) | 430 rpm |
| Nlim (oil) | 1.700 rpm |
| Min operating temperature, Tmin | -20 °C |
| Max operating temperature, Tmax | 120 °C |
| Characteristic cage frequency, FTF | 0.5 Hz |
| Characteristic rolling element frequency, BSF | 9.64 Hz |
| Characteristic outer ring frequency, BPF0 | 10.5 Hz |
| Characteristic inner ring frequency, BPFI | 10.5 Hz |
| Bearing number | K81224 |
| Brand | NTN |
| Bore Diameter (mm) | 120.000 |
| Outer Diameter (mm) | 170.000 |
| d | 120.000 mm |
| D | 170.000 mm |
| Dw | 15.000 mm |
| Category | Bearings |
| BDI Inventory | 0.0 |
| Manufacturer Name | NTN |
| Minimum Buy Quantity | N/A |
| Weight / Kilogram | 0.628 |
| Product Group – BDI | B04144 |
Detailed Parameters
parameter：
| SM1104KB Deep groove ball bearings | Brand:Timken ，Size :31.75x72x37.7mm ，Bore Diameter :31.75mm ，Outer Diameter :72mm |
| UCFLX09 Bearing units | A1:14 mm ，A:40 mm ，d:45 mm ，Bore Diameter :45mm ，A0:55.6 mm ，Brand:KOYO |
| 7019 ACE/P4A Angular contact ball bearings | Bore Diameter :145mm ，Outer Diameter :95mm ，Size :145x95x24mm ，Width :24mm ，Brand:SKF ，d:95 mm |
| SB570 Deep groove ball bearings | Width :115mm ，Size :570x799x115mm ，Brand:KOYO ，Bore Diameter :570mm ，d:570 mm ，Outer Diameter :799mm |
| SL045044 Cylindrical roller bearings | Bore Diameter :220mm ，Outer Diameter :340mm ，Width :160mm ，Brand:ISO ，Size :220x340x160mm ，d:220 mm |
| E 255 7CE1 Angular contact ball bearings | Bore Diameter :55mm ，Outer Diameter :100mm ，Size :55x100x21mm ，Brand:SNFA |
| 7210 Angular contact ball bearings | Dynamic load, C:41.5 kN ，Contact angle α:30 ° ，r1s min:0.6 mm ，rs min:1.1 mm ，Mass:0.46 kg |
| 719/9 CE/HCP4A Angular contact ball bearings | Brand:SKF ，Outer Diameter :9mm ，Width :6mm ，Bore Diameter :20mm ，Size :20x9x6mm |
| 51414M Thrust ball bearings | Size :70x150x60mm ，Outer Diameter :150mm ，Brand:SKF ，Bore Diameter :70mm ，d:70 mm ，Width :60mm |
| NMJ2.3/4 Self aligning ball bearings | Brand:RHP ，Size :69.85x158.75x34.925mm ，Outer Diameter :158.75mm ，Bore Diameter :69.85mm |
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