Timken 230RU51 cylindrical roller bearings
Advance Timken 230RU51 cylindrical roller bearings is your source for quality and accessories. shop online for home delivery or pick up in one of 115x75x20 Size (mm) our 10000 .
| Size (mm) | 115x75x20 |
| Bore Diameter (mm) | 115 |
| Outer Diameter (mm) | 75 |
| Width (mm) | 20 |
| d | 75 mm |
| D | 115 mm |
| B | 20 mm |
| d1 | 90 mm |
| d2 | 88.2 mm |
| D2 | 102.8 mm |
| b | 1.5 mm |
| C1 | 10.9 mm |
| C2 | 4.4 mm |
| C3 | 2.9 mm |
| r1,2 – min. | 1.1 mm |
| r3,4 – min. | 0.6 mm |
| a | 32.3 mm |
| da – min. | 81 mm |
| db – min. | 81 mm |
| Da – max. | 109 mm |
| Db – max. | 111.8 mm |
| ra – max. | 1 mm |
| rb – max. | 0.6 mm |
| dn | 91.1 mm |
| Basic dynamic load rating – C | 19 kN |
| Basic static load rating – C0 | 16.6 kN |
| Fatigue load limit – Pu | 0.71 kN |
| Limiting speed for grease lubrication | 17000 r/min |
| Limiting speed for oil lubrication | 26000 mm/min |
| Ball – Dw | 7.938 mm |
| Ball – z | 30 |
| Gref | 7.7 cm3 |
| 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 | 115 N |
| Preload class B – GB | 230 N |
| Preload class C – GC | 690 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 | 148 N/micron |
| Preload class B | 188 N/micron |
| Preload class C | 285 N/micron |
| r1,2 min. | 1.1 mm |
| r3,4 min. | 0.6 mm |
| da min. | 81 mm |
| db min. | 81 mm |
| Da max. | 109 mm |
| Db max. | 111.8 mm |
| ra max. | 1 mm |
| rb max. | 0.6 mm |
| Basic dynamic load rating C | 25.1 kN |
| Basic static load rating C0 | 27 kN |
| Fatigue load limit Pu | 0.71 kN |
| Attainable speed for grease lubrication | 17000 r/min |
| Attainable speed for oil-air lubrication | 26000 r/min |
| Ball diameter Dw | 7.938 mm |
| Number of balls z | 30 |
| Reference grease quantity Gref | 7.7 cm³ |
| Preload class A GA | 115 N |
| Static axial stiffness, preload class A | 148 N/µm |
| Preload class B GB | 230 N |
| Static axial stiffness, preload class B | 188 N/µm |
| Preload class C GC | 690 N |
| Static axial stiffness, preload class C | 285 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 | 0.66 kg |
Detailed Parameters
parameter：
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