1211SK NTN (Grease) Lubrication Speed 6 000 r/min 55x100x21mm Self aligning ball bearings
| rs min | 1.5 mm |
| Associated sleeve reference | H211X |
| e | 0.2 |
| Y1 | 3.2 |
| Y2 | 4.9 |
| Y0 | 3.3 |
| Radial clearance class | CN |
| Precision class | P0 |
| Mass | 0.7 kg |
| Dynamic load, C | 26.9 kN |
| Static load, C0 | 10 kN |
| Nlim (oil) | 7.100 rpm |
| Nlim (grease) | 6.000 rpm |
| Min operating temperature, Tmin | -20 °C |
| Max operating temperature, Tmax | 120 °C |
| da min | 63 mm |
| da max | 70 mm |
| db min | 60 mm |
| Ce min | 6 mm |
| Da max | 92 mm |
| ra max | 1.5 mm |
| Bearing number | 1211SK |
| Size (mm) | 55x100x21 |
| Brand | NTN |
| Bore Diameter (mm) | 55 |
| Outer Diameter (mm) | 100 |
| Width (mm) | 21 |
| d | 55 mm |
| D | 100 mm |
| B | 21 mm |
| C | 21 mm |
| r min. | 1.5 mm |
| da min. | 63 mm |
| Da max. | 92 mm |
| ra max. | 1.5 mm |
| Weight | 0.705 Kg |
| Basic dynamic load rating (C) | 26.9 kN |
| Basic static load rating (C0) | 10 kN |
| (Grease) Lubrication Speed | 6 000 r/min |
| (Oil) Lubrication Speed | 7 100 r/min |
| Calculation factor (e) | 0.2 |
| Calculation factor (Y0) | 3.3 |
| Calculation factor (Y1) | 3.2 |
Detailed Parameters
parameter：
| DAC3055GRR9D Angular contact ball bearings | Bore Diameter :30mm ，Brand:KOYO ，Outer Diameter :55mm ，Size :30x55x23mm |
| NU 417 Cylindrical roller bearings | d:85 mm ，Brand:NSK ，D:210 mm ，Fw:113 mm ，Outer Diameter :177mm ，Bore Diameter :85mm |
| SL183012 Cylindrical roller bearings | Bore Diameter :60mm ，Width :26mm ，Outer Diameter :95mm ，Brand:INA ，Size :60x95x26mm |
| NF 315 Cylindrical roller bearings | Brand:NSK ，Bore Diameter :75mm ，Outer Diameter :139.5mm ，Size :75x139.5x37mm |
| 81111TN Thrust roller bearings | Size :55x78x16mm ，Brand:NBS ，Bore Diameter :55mm ，Outer Diameter :78mm ，Width :16mm ，d:55 mm |
| RNN3611 Cylindrical roller bearings | Size :180x252x110mm ，Width :110.000mm ，Outer Diameter :252.000mm ，Bore Diameter :180.000mm ，Brand:NTN ，d:180.000 mm |
| 51113 Thrust ball bearings | Width :18mm ，Bore Diameter :65mm ，Size :65x90x18mm ，Outer Diameter :90mm ，Brand:NACHI |
| N1014RXHTP Cylindrical roller bearings | Brand:NSK ，d:70 mm ，Outer Diameter :100mm ，Size :70x100x20mm ，Bore Diameter :70mm ，Width :20mm |
| BK1212 Cylindrical roller bearings | Outer Diameter :16mm ，Size :12x16x12mm ，Width :12mm ，Brand:ISO ，Bore Diameter :12mm |
| 81107 Thrust roller bearings | Bore Diameter :35mm ，Outer Diameter :52mm ，Brand:CX ，d:35 mm |
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