6,35 mm x 15,875 mm x 4,978 mm  NMB RF-4 deep groove ball bearings
         
           6,35 mm x 15,875 mm x 4,978 mm  NMB RF-4 deep groove ball bearings  with BEARING-SINGAPORE (PTE)LTD. easy-to-use parts graphics, giving you the ability to check parts availability, NMB Bearing pricing, examine remanufactured 6,35 mm x 15,875 mm x 4,978 mm  options.
            What is RF-4 bearing cross reference?
      
      
      
      
    
                              
        | Brand Name: | NMB | 
                              
        | Model Number: | RF-4 | 
                                                            
        | Series: | 495 | 
                                                  
        | Cone Part Number: | 496P | 
                                                  
        | Design Units: | Imperial | 
                                                  
        | Cage Type: | Stamped Steel | 
                                                  
        | C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1: | 71600 lbf | 
                                                  
        | C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2: | 18600 lbf | 
                                                  
        | d: | 3.1875 in | 
                                                  
        | B - Cone Width: | 1.1720 in | 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
   
      
    
          
Product Details
        
               
        
            
                                
              | Series | 495 | 
                                        
              | Cone Part Number | 496P | 
                                        
              | Design Units | Imperial | 
                                        
              | Cage Type | Stamped Steel | 
                                        
              | C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 | 71600 lbf | 
                                        
              | C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 | 18600 lbf | 
                                        
              | d | 3.1875 in | 
                                        
              | B - Cone Width | 1.1720 in | 
                                        
              | R - Cone Backface To Clear Radius3 | 0.14 in | 
                                        
              | da - Cone Frontface Backing Diameter | 3.5 in | 
                                        
              | db - Cone Backface Backing Diameter | 3.74 in | 
                                        
              | Ab - Cage-Cone Frontface Clearance | 0.12 in | 
                                        
              | Aa - Cage-Cone Backface Clearance | 0.07 in | 
                                        
              | a - Effective Center Location4 | -0.03 in | 
                                        
              | C90 - Dynamic Radial Rating (90 million revolutions)5 | 10700 lbf | 
                                        
              | C1 - Dynamic Radial Rating (1 million revolutions)6 | 41200 lbf | 
                                        
              | C0 - Static Radial Rating | 48600 lbf | 
                                        
              | Ca90 - Dynamic Thrust Rating (90 million revolutions)7 | 8120 lbf | 
                                        
              | K - Factor8 | 1.31 | 
                                        
              | G1 - Heat Generation Factor (Roller-Raceway) | 104.6 | 
                                        
              | G2 - Heat Generation Factor (Rib-Roller End) | 29.3 | 
                                        
              | Cg - Geometry Factor | 0.125 |