KOYO 3NCN1020K cylindrical roller bearings
Welcome 180x120x28 Size (mm) to the KOYO 3NCN1020K cylindrical roller bearings 180 Bore Diameter (mm) online seller.
| Size (mm) | 180x120x28 |
| Bore Diameter (mm) | 180 |
| Outer Diameter (mm) | 120 |
| Width (mm) | 28 |
| d | 120 mm |
| D | 180 mm |
| B | 28 mm |
| d1 | 143.2 mm |
| d2 | 140.8 mm |
| D2 | 161.9 mm |
| r1,2 – min. | 2 mm |
| r3,4 – min. | 1 mm |
| a | 49.2 mm |
| da – min. | 129 mm |
| da – max. | 142.4 mm |
| db – min. | 129 mm |
| db – max. | 140 mm |
| Da – max. | 171 mm |
| Db – max. | 175.4 mm |
| ra – max. | 2 mm |
| rb – max. | 1 mm |
| Basic dynamic load rating – C | 35.8 kN |
| Basic static load rating – C0 | 36.5 kN |
| Fatigue load limit – Pu | 1.3 kN |
| Limiting speed for grease lubrication | 10000 r/min |
| Ball – Dw | 11.112 mm |
| Ball – z | 33 |
| Calculation factor – e | 0.68 |
| Calculation factor – Y2 | 1.41 |
| Calculation factor – Y0 | 0.76 |
| Calculation factor – X2 | 0.67 |
| Calculation factor – Y1 | 0.92 |
| Preload class A – GA | 220 N |
| Preload class B – GB | 440 N |
| Preload class C – GC | 1320 N |
| Calculation factor – f | 1.08 |
| Calculation factor – f1 | 0.99 |
| Calculation factor – f2A | 1 |
| Calculation factor – f2B | 1.02 |
| Calculation factor – f2C | 1.05 |
| Calculation factor – fHC | 1.01 |
| Preload class A | 220 N/micron |
| Preload class B | 283 N/micron |
| Preload class C | 424 N/micron |
| r1,2 min. | 2 mm |
| r3,4 min. | 1 mm |
| da min. | 129 mm |
| da max. | 142.4 mm |
| db min. | 129 mm |
| db max. | 140 mm |
| Da max. | 171 mm |
| Db max. | 175.4 mm |
| ra max. | 2 mm |
| rb max. | 1 mm |
| Basic dynamic load rating C | 47.5 kN |
| Basic static load rating C0 | 58.5 kN |
| Fatigue load limit Pu | 1.27 kN |
| Attainable speed for grease lubrication | 10000 r/min |
| Ball diameter Dw | 11.112 mm |
| Number of balls z | 33 |
| Preload class A GA | 220 N |
| Static axial stiffness, preload class A | 220 N/µm |
| Preload class B GB | 440 N |
| Static axial stiffness, preload class B | 283 N/µm |
| Preload class C GC | 1320 N |
| Static axial stiffness, preload class C | 424 N/µm |
| Calculation factor f | 1.08 |
| Calculation factor f1 | 0.99 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.02 |
| Calculation factor f2C | 1.05 |
| Calculation factor fHC | 1.01 |
| Calculation factor e | 0.68 |
| Calculation factor (single, tandem) Y2 | 0.87 |
| Calculation factor (single, tandem) Y0 | 0.38 |
| Calculation factor (single, tandem) X2 | 0.41 |
| Calculation factor (back-to-back, face-to-face) Y1 | 0.92 |
| Calculation factor (back-to-back, face-to-face) Y2 | 1.41 |
| Calculation factor (back-to-back, face-to-face) Y0 | 0.76 |
| Calculation factor (back-to-back, face-to-face) X2 | 0.67 |
| Mass bearing | 2.24 kg |
Detailed Parameters
parameter：
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