
                    Heavy Series Supporting Roller 
                      Bearing
                    NNTRSeries:
                    
                       
                        | Dimension.(mm) 
                             |   | 
                       
                        | d | D | B | C | Bearing No. | 
                       
                        | 38 | 110 | 54 | 52 | NNTR38×110×54-2ZL | 
                       
                        | 50 | 130 | 65 | 63 | NNTR50×130×65-2ZL | 
                       
                        | 50 | 140 | 78 | 75 | NNTR50×140×78-2ZL | 
                       
                        | 55 | 120 | 43 | 40 | NNTR55×120×43-2ZL | 
                       
                        | 55 | 140 | 70 | 68 | NNTR55×140×70-2ZL | 
                       
                        | 60 | 130 | 65 | 63 | NNTR60×130×65-2ZL | 
                       
                        | 60 | 150 | 75 | 73 | NNTR60×150×75-2ZL | 
                       
                        | 60 | 160 | 90 | 86 | NNTR60×160×90-2ZL | 
                       
                        | 60 | 165 | 65 | 63 | NNTR60×165×65-2ZL | 
                       
                        | 65 | 150 | 54 | 52 | NNTR65×150×54-2ZL | 
                       
                        | 65 | 160 | 75 | 73 | NNTR65×160×75-2ZL | 
                       
                        | 70 | 180 | 85 | 83 | NNTR70×180×85-2ZL | 
                       
                        | 70 | 190 | 103 | 99 |  NNTR70×190×103-2ZL | 
                       
                        | 80 | 200 | 90 | 88 | NNTR80×200×90-2ZL | 
                       
                        | 80 | 210 | 115 | 111 |  NNTR80×210×115-2ZL | 
                       
                        | 80 | 230 | 117 | 115 |  NNTR80×230×117-2ZL | 
                       
                        | 90 | 220 | 100 | 98 |  NNTR90×220×100-2ZL | 
                       
                        | 90 | 240 | 132 | 128 |  NNTR90×240×132-2ZL | 
                       
                        | 100 | 210 | 65 | 63 |  NNTR100×210×65-2ZL | 
                       
                        | 100 | 215 | 106 | 101 |   NNTR100×215×106-2ZL | 
                       
                        | 100 | 240 | 105 | 103 |   NNTR100×240×105-2ZL | 
                       
                        | 100 | 250 | 106 | 103 |   NNTR100×250×106-2ZL | 
                       
                        | 110 | 250 | 105 | 103 |   NNTR110×250×105-2ZL | 
                       
                        | 110 | 260 | 115 | 113 |   NNTR110×260×115-2ZL | 
                       
                        | 120 | 260 | 115 | 113 |   NNTR120×260×115-2ZL | 
                       
                        | 120 | 290 | 135 | 133 |   NNTR120×290×135-2ZL | 
                       
                        | 130 | 250 | 106 | 103 |   NNTR130×250×106-2ZL | 
                       
                        | 130 | 310 | 146 | 144 |   NNTR130×310×146-2ZL |