W693Z NTN Da max. 6.8 mm 3x8x4mm Deep groove ball bearings
| Bearing number | W693Z |
| Size (mm) | 3x8x4 |
| Brand | NTN |
| Bore Diameter (mm) | 3 |
| Outer Diameter (mm) | 8 |
| Width (mm) | 4 |
| d | 3 mm |
| D | 8 mm |
| B | 4 mm |
| C | 4 mm |
| r min. | 0.15 mm |
| da min. | 4.2 mm |
| da max | 4.4 mm |
| Da max. | 6.8 mm |
| ra max. | 0.15 mm |
| Weight | 0.72 Kg |
| Basic dynamic load rating (C) | 0.56 kN |
| Basic static load rating (C0) | 0.18 kN |
| (Grease) Lubrication Speed | 54 000 r/min |
| (Oil) Lubrication Speed | 63 000 r/min |
Detailed Parameters
parameter：
| BK101616 Cylindrical roller bearings | Size :10x16x16mm ，Bore Diameter :10mm ，Brand:ISO ，Fw:10 mm ，Width :16mm ，Outer Diameter :16mm |
| VEB 15 /S/NS 7CE3 Angular contact ball bearings | Bore Diameter :15mm ，Brand:SNFA ，Outer Diameter :28mm ，Width :7mm ，Size :15x28x7mm |
| NJ2228-E-M1 + HJ2228-E Cylindrical roller bearings | Outer Diameter :250mm ，d:140 mm ，Size :140x250x68mm ，Brand:FAG ，Width :68mm ，Bore Diameter :140mm |
| KDX047 Angular contact ball bearings | Width :12.7mm ，Size :120.65x146.05x12.7mm ，Brand:KOYO ，Bore Diameter :120.65mm ，Outer Diameter :146.05mm |
| 6918-Z Deep groove ball bearings | Outer Diameter :125mm ，Brand:CYSD ，Bore Diameter :90mm ，Size :90x125x18mm |
| 230/710EK Cylindrical roller bearings | Width :236mm ，d:710 mm ，Outer Diameter :1030mm ，Bore Diameter :710mm ，Brand:NACHI ，Size :710x1030x236mm |
| 7017C Angular contact ball bearings | Bore Diameter :85mm ，Width :22mm ，Size :85x130x22mm ，Brand:KOYO ，Outer Diameter :130mm |
| R14ZZ Deep groove ball bearings | Bore Diameter :22.225mm ，Size :22.225x47.625x12.700mm ，d:22.225 mm ，Brand:NTN ，Width :12.700mm ，Outer Diameter :47.625mm |
| NN3928MB Cylindrical roller bearings | Bore Diameter :140mm ，Outer Diameter :178mm ，Brand:NSK ，Size :140x178x37mm |
| 63309 ZZ Deep groove ball bearings | Bore Diameter :45mm ，Outer Diameter :100mm ，Size :45x100x39.7mm ，Brand:ISO |
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