WBB1-8709 SKF Mass bearing 0.0022 kg 20x15x3.5mm Deep groove ball bearings
| Bearing number | WBB1-8709 |
| Size (mm) | 20x15x3.5 |
| Brand | SKF |
| Bore Diameter (mm) | 20 |
| Outer Diameter (mm) | 15 |
| Width (mm) | 3.5 |
| d | 15 mm |
| D | 20 mm |
| B | 3.5 mm |
| d1 | 16.41 mm |
| D1 | 18.79 mm |
| r1,2 – min. | 0.15 mm |
| da – min. | 16 mm |
| da – max. | 16 mm |
| Da – max. | 19.5 mm |
| ra – max. | 0.15 mm |
| Basic dynamic load rating – C | 0.527 kN |
| Basic static load rating – C0 | 0.29 kN |
| Fatigue load limit – Pu | 0.012 kN |
| Reference speed | 67000 r/min |
| Limiting speed | 43000 r/min |
| Calculation factor – kr | 0.015 |
| Calculation factor – f0 | 8.4 |
| d1 ≈ | 16.41 mm |
| D1 ≈ | 18.79 mm |
| r1,2 min. | 0.15 mm |
| da min. | 16 mm |
| Da max. | 19.5 mm |
| ra max. | 0.15 mm |
| Basic dynamic load rating C | 0.527 kN |
| Basic static load rating C0 | 0.29 kN |
| Fatigue load limit Pu | 0.012 kN |
| Calculation factor kr | 0.015 |
| Calculation factor f0 | 8.4 |
| Mass bearing | 0.0022 kg |
Detailed Parameters
parameter：
| RNAO20x32x12 Cylindrical roller bearings | Fw:20 mm ，Brand:CX ，d:20 mm ，Outer Diameter :32mm ，Bore Diameter :20mm |
| 7303CGD2/GNP4 Angular contact ball bearings | d:17 mm ，Width :14mm ，Size :17x47x14mm ，Bore Diameter :17mm ，Outer Diameter :47mm ，Brand:NTN |
| 22311EMW33 Spherical roller bearings | Outer Diameter :120.000mm ，Bore Diameter :55.000mm ，d:55.000 mm ，Size :55x120x43mm ，Width :43.000mm ，Brand:SNR |
| CRBH 3510 A UU Thrust roller bearings | Width :10mm ，Size :35x60x10mm ，Bore Diameter :35mm ，Outer Diameter :60mm ，Brand:IKO |
| 7214 Angular contact ball bearings | rs min:1.5 mm ，r1s min:1 mm ，Contact angle α:30 ° ，Mass:1.09 kg |
| BSU2562BDFD - T Thrust ball bearings | Bore Diameter :25mm ，Brand:KOYO ，Bearing number : BSU2562BDFD:T ，D:74 mm ，d:25 mm ，Outer Diameter :74mm |
| 63204-2RS Deep groove ball bearings | Outer Diameter :47mm ，Brand:ISO ，Bore Diameter :20mm ，Size :20x47x20.6mm ，Width :20.6mm |
| RNA4924-XL Needle roller bearings | Outer Diameter :165mm ，Bore Diameter :135mm ，Size :135x165x45mm ，Brand:INA |
| NUP 311 EW Cylindrical roller bearings | d:55 mm ，Size :55x120x29mm ，Outer Diameter :120mm ，Width :29mm ，Bore Diameter :55mm ，Brand:NSK |
| 71902 C Angular contact ball bearings | Outer Diameter :28mm ，Brand:ISO ，d:15 mm ，Size :15x28x7mm ，Bore Diameter :15mm ，Width :7mm |
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