IKO BR 142212 needle roller bearings
IKO BR 142212 needle roller bearings Needs Analysis , Manufacturing 115x75x20 Size (mm) Service . Get Your Free.
| 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 | 22.3 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 | 19.9 kN |
| Basic static load rating – C0 | 17.6 kN |
| Fatigue load limit – Pu | 0.75 kN |
| Limiting speed for grease lubrication | 16000 r/min |
| Limiting speed for oil lubrication | 24000 mm/min |
| Ball – Dw | 7.938 mm |
| Ball – z | 30 |
| Gref | 7.7 cm3 |
| Calculation factor – f0 | 9.7 |
| Preload class A – GA | 65 N |
| Preload class B – GB | 130 N |
| Preload class C – GC | 390 N |
| Calculation factor – f | 1 |
| Calculation factor – f2A | 1 |
| Calculation factor – f2B | 1.02 |
| Calculation factor – f2C | 1.05 |
| Calculation factor – fHC | 1 |
| Preload class A | 50 N/micron |
| Preload class B | 65 N/micron |
| Preload class C | 104 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 | 26.5 kN |
| Basic static load rating C0 | 29 kN |
| Fatigue load limit Pu | 0.75 kN |
| Attainable speed for grease lubrication | 16000 r/min |
| Attainable speed for oil-air lubrication | 24000 r/min |
| Ball diameter Dw | 7.938 mm |
| Number of balls z | 30 |
| Reference grease quantity Gref | 7.7 cm³ |
| Preload class A GA | 65 N |
| Static axial stiffness, preload class A | 50 N/µm |
| Preload class B GB | 130 N |
| Static axial stiffness, preload class B | 65 N/µm |
| Preload class C GC | 390 N |
| Static axial stiffness, preload class C | 104 N/µm |
| Calculation factor f | 1.08 |
| Calculation factor f1 | 1 |
| Calculation factor f2A | 1 |
| Calculation factor f2B | 1.02 |
| Calculation factor f2C | 1.05 |
| Calculation factor fHC | 1 |
| Calculation factor f0 | 9.7 |
| Mass bearing | 0.7 kg |
Detailed Parameters
parameter：
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