| Bearing No. | Basic Dimensions (mm) | Ball | Weight(Kg) | Basic load ratings | Limiting Speed (rpm) | Interchange | ||||||||
| d | D | B | Radial Co(N) | Radial Cr(N) | Thrust Co(N) | Thrust Cr(N) | Tilting Co(N) | Tilting Cr(N) | KAYDON | SILVERTHIN | ||||
| PRF250 | 635 | 673.1 | 19.05 | 103 | 4.944 | 129 270  | 
                                                                                        39 870  | 
                                                                                        179 130  | 
                                                                                        97 460  | 
                                                                                        23 430  | 
                                                                                        12 750  | 
                                                                                        780 | KF250CP0 | SF250CP0 | PRG250 | 635 | 685.8 | 25.4 | 78 | 8.845 | 189 850  | 
                                                                                        64 900  | 
                                                                                        280 730  | 
                                                                                        178 370  | 
                                                                                        37 080  | 
                                                                                        23 560  | 
                                                                                        770 | KG250CP0 | SG250CP0 | 
| PRC300 | 762 | 781.05 | 9.525 | 243 | 1.456 | 64 990  | 
                                                                                        14 500  | 
                                                                                        91 460  | 
                                                                                        35 590  | 
                                                                                        14 110  | 
                                                                                        5 490  | 
                                                                                        660 | KC300CP0 | SC300CP0 | PRD300 | 762 | 787.4 | 12.7 | 183 | 2.599 | 92 790  | 
                                                                                        22 920  | 
                                                                                        140 300  | 
                                                                                        59 780  | 
                                                                                        21 740  | 
                                                                                        9 270  | 
                                                                                        660 | KD300CP0 | SD300CP0 | 
| PRF300 | 762 | 800.1 | 19.05 | 123 | 5.897 | 154 350  | 
                                                                                        43 720  | 
                                                                                        213 340  | 
                                                                                        105 070  | 
                                                                                        33 330  | 
                                                                                        16 410  | 
                                                                                        650 | KF300CP0 | SF300CP0 | PRG300 | 762 | 812.8 | 25.4 | 93 | 10.569 | 226 370  | 
                                                                                        71 010  | 
                                                                                        333 350  | 
                                                                                        189 090  | 
                                                                                        52 500  | 
                                                                                        29 780  | 
                                                                                        650 | KG300CP0 | SG300CP0 | 
| PRF350 | 889 | 927.1 | 19.05 | 143 | 6.849 | 179 490  | 
                                                                                        47 160  | 
                                                                                        247 370  | 
                                                                                        111 070  | 
                                                                                        44 930  | 
                                                                                        20 170  | 
                                                                                        560 | KF350CP0 | SF350CP0 | PRG350 | 889 | 939.8 | 25.4 | 108 | 12.292 | 262 890  | 
                                                                                        76 490  | 
                                                                                        385 570  | 
                                                                                        196 260  | 
                                                                                        70 510  | 
                                                                                        35 890  | 
                                                                                        560 | KG350CP0 | SG350CP0 | 
| PRF400 | 1016 | 1054.1 | 19.05 | 163 | 7.802 | 204 570  | 
                                                                                        50 270  | 
                                                                                        281 570  | 
                                                                                        118 010  | 
                                                                                        58 290  | 
                                                                                        24 430  | 
                                                                                        490 | KF400CP0 | SF400CP0 | PRG400 | 1016 | 1066.8 | 25.4 | 123 | 13.971 | 299 410  | 
                                                                                        81 430  | 
                                                                                        438 550  | 
                                                                                        209 420  | 
                                                                                        91 340  | 
                                                                                        43 620  | 
                                                                                        490 | KG400CP0 | SG400CP0 |