WBB1-8700 SKF Mass bearing 0.0001 kg 4×1.2×1.8mm Deep groove ball bearings
| Bearing number | WBB1-8700 |
| Size (mm) | 4×1.2×1.8 |
| Brand | SKF |
| Bore Diameter (mm) | 4 |
| Outer Diameter (mm) | 1.2 |
| Width (mm) | 1.8 |
| d | 1.2 mm |
| D | 4 mm |
| B | 1.8 mm |
| d1 | 2.15 mm |
| D1 | 3.05 mm |
| r1,2 – min. | 0.1 mm |
| da – min. | 2 mm |
| Da – max. | 3.2 mm |
| ra – max. | 0.1 mm |
| Basic dynamic load rating – C | 0.062 kN |
| Basic static load rating – C0 | 0.016 kN |
| Fatigue load limit – Pu | 0.001 kN |
| Reference speed | 220000 r/min |
| Limiting speed | 140000 r/min |
| Calculation factor – kr | 0.02 |
| Calculation factor – f0 | 6.4 |
| d1 ≈ | 2.15 mm |
| D1 ≈ | 3.05 mm |
| r1,2 min. | 0.1 mm |
| da min. | 2 mm |
| Da max. | 3.2 mm |
| ra max. | 0.1 mm |
| Basic dynamic load rating C | 0.062 kN |
| Basic static load rating C0 | 0.016 kN |
| Fatigue load limit Pu | 0.001 kN |
| Calculation factor kr | 0.02 |
| Calculation factor f0 | 6.4 |
| Mass bearing | 0.0001 kg |
Detailed Parameters
parameter：
| LMEKM25UU Linear bearings | Bore Diameter :25mm ，Brand:Samick ，Outer Diameter :40mm ，K:50 mm ，d:25 mm ，D:40 mm |
| 31328-X-N11CA-A160-200 Tapered roller bearings | Outer Diameter :300mm ，Bore Diameter :140mm ，Width :154mm ，Brand:FAG ，d:140 mm ，Size :140x300x154mm |
| H715340/11 Tapered roller bearings | Bore Diameter :65.088mm ，d:65.088 mm ，Size :65.088x136.525x46.038mm ，Outer Diameter :136.525mm ，Brand:CX ，Width :46.038mm |
| PCM 19019560 M Plain bearings | Brand:SKF ，Size :190x195x60mm ，Width :60mm ，d:190 mm ，Bore Diameter :190mm ，Outer Diameter :195mm |
| 16084 Deep groove ball bearings | Brand:KOYO ，Size :420x620x63mm ，Outer Diameter :620mm ，Bore Diameter :420mm |
| AST800 3830 Plain bearings | Outer Diameter :42mm ，Bore Diameter :38mm ，Brand:AST ，Bearing Type:steel with bronze |
| 203K Deep groove ball bearings | Brand:Timken ，Bore Diameter :17mm ，Width :12mm ，Size :17x40x12mm ，d:17 mm ，Outer Diameter :40mm |
| K71X78X27.8 Needle roller bearings | Bore Diameter :71.000mm ，Brand:NTN ，Outer Diameter :78.000mm ，Fw:71.000 mm |
| 32244DF Tapered roller bearings | d:220 mm ，Brand:NTN ，Bore Diameter :220mm ，Width :228mm ，Size :220x400x228mm ，Outer Diameter :400mm |
| GEC480HCS Plain bearings | Bore Dia (d):480.0000 ，Bearing Type:smaller profile ，Outer Dia (D):650.0000 ，Bore Diameter :480mm ，Brand:AST ，Outer Diameter :650mm |
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