2902 NACHI Da max. 21 mm 15x31x12mm Thrust ball bearings
| Bearing number | 2902 |
| Size (mm) | 15x31x12 |
| Brand | NACHI |
| Bore Diameter (mm) | 15 |
| Outer Diameter (mm) | 31 |
| Width (mm) | 12 |
| d | 15 mm |
| D | 31 mm |
| T | 12 mm |
| d1 | 31 mm |
| r min. | 0.6 mm |
| D1 | 15.2 mm |
| da min. | 25 mm |
| Da max. | 21 mm |
| ra max. | 0.6 mm |
| Weight | 0.041 Kg |
| Basic dynamic load rating (C) | 14.3 kN |
| Basic static load rating (C0) | 22.8 kN |
| (Grease) Lubrication Speed | 5100 r/min |
Detailed Parameters
parameter：
| 21310EAE4 Spherical roller bearings | Bore Diameter :50mm ，Outer Diameter :110mm ，Brand:NSK ，d:50 mm ，Width :27mm ，Size :50x110x27mm |
| NU 220 E Cylindrical roller bearings | Size :100x180x34mm ，Bore Diameter :100mm ，Outer Diameter :180mm ，Width :34mm ，Brand:NACHI |
| GEZ44ET-2RS Plain bearings | Bore Diameter :44.45mm ，Size :44.45x71.438x38.887mm ，Outer Diameter :71.438mm ，Brand:LS |
| AST20 10095 Plain bearings | Bearing Type:straight ，Shaft Dia., Nominal (d):100.0000 ，Outer Diameter :105mm ，Brand:AST ，Bore Diameter :100mm |
| E 230 /NS 7CE3 Angular contact ball bearings | Width :16mm ，Size :30x62x16mm ，Brand:SNFA ，Outer Diameter :62mm ，Bore Diameter :30mm |
| Z-565668.ZL-K-C5 Cylindrical roller bearings | Width :92mm ，Outer Diameter :360mm ，Bore Diameter :240mm ，Brand:FAG ，Size :240x360x92mm |
| SBPF204-12 Bearing units | Brand:FYH ，d:19.05 mm ，A:16 mm ，Bore Diameter :19.05mm ，A1:4 mm ，Width :25mm |
| NUP2318 Cylindrical roller bearings | Width :64mm ，Brand:NTN ，Outer Diameter :190mm ，Bore Diameter :90mm ，Size :90x190x64mm |
| 08118/08237 Tapered roller bearings | Brand:Timken ，Bore Diameter :30.162mm ，Outer Diameter :58.788mm ，d:30.162 mm ，Size :30.162x58.788x14.684mm ，Width :14.684mm |
| 511007 Angular contact ball bearings | Brand:Timken ，Size :43x80x50mm ，Bore Diameter :43mm ，Width :50mm ，Outer Diameter :80mm |
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