Bearing 2580 / 2523
                
                
                    Inner diameter:: 31.75 mm
Outer diameter: 69.85 mm
The size of the width: 23.812 mm
Weight:: 0.454 kg
                    
            Outer diameter: 69.85 mm
The size of the width: 23.812 mm
Weight:: 0.454 kg
Technical specifications
Designation: 2580 / 2523
Producer: TIMKEN
Technical data from the manufacturers catalog :
Inner diameter(d): 31.75 mm
External diameter(D): 69.85 mm
Working width (T): 23.812 mm
Width (height) (B): 25.357 mm
Outer cage width (C): 19.05 mm
Internal chamfer radius (R): 0.8 mm
Outside chamfer radius (r): 1.3 mm
Cr (KN): 69
Cor (KN): 81.5
a: 16 мм
Width: 0.454 mm
ШАРИКОПОДШИПНИК РАДИАЛЬНО-УПОРНЫЙ С ЧЕТЫРЕХТОЧЕЧНЫМ КОНТАКТОМ QJ309-TVP 
                                    Manufacturer: FAG 
                                
                                  Sizes: 45x100x25 (mm)
                                
                                
                            HTD 8M 2568  ( HTD8M 2568 -V, -M, -MFX ) 
                                    Manufacturer: ContiTech AG 
                                
                            K84 PU(71x64,7x4,85 ) 
                                    Manufacturer: KASTAS 
                                
                                  Sizes: 71x64,7x4,85  (mm)
                                
                                
                            HTD 8M 3608  ( HTD8M 3608 -V, -M, -MFX ) 
                                    Manufacturer: ContiTech AG 
                                
                            Bearing 40X12 
                                    Manufacturer: INA-FAG 
                                
                                  Sizes: 101.575x149.352x37.720 (mm)
                                
                                
                                   Weight:: 2.220 (kg)
                                
                            
                            Торцевое уплотнение RM MG12-50 
                                    Manufacturer: RiMi 
                                
                            Bearing 7311ACP6Z1 (E46311Z1) 
                                    Manufacturer: TMB 
                                
                                  Sizes: 55x120x29 (mm)
                                
                                
                                   Weight:: 1.4 (kg)
                                
                            
                            K21 NBR(85x100x9) 
                                    Manufacturer: KASTAS 
                                
                                  Sizes: 85x100x9 (mm)
                                
                                
                            T20 DD 
                                    Manufacturer: ContiTech AG 
                                
                            3 NBR 70(011,00x03,00) 
                                    Manufacturer: KASTAS 
                                
                            
                INSTALLING BEARINGS 
                    
                       Approximately 16% of all early pill accidents are caused by faulty mounting (generally excessive force) and lack of proper tools.
                    
                
                DROPPING BEARINGS 
                    
                        The need for dismantling (removal) of the bearing can be caused by several reasons: failure of the bearings, disassembly of other parts of the mechanism, and so on.
                    
                
                SELECTION OF FUEL OILS
                    
                       The use of grease to lubricate the bearings ensures smooth operation and maximum reliability of bearings, even in extreme conditions.