Cone Part Number | 
                                                                        N/A 67983 | 
                                                                                Cup Part Number | 
                                                                        N/A 67920 | 
                                                                                Inner Spacer Part Number | 
                                                                        N/A X2S-67983 | 
                                                                                Outer Spacer Part Number | 
                                                                        N/A Y10S-67920 | 
                                                                                Design Unit | 
                                                                        N/A Inch | 
                                                                                d - Bore | 
                                                                        N/A 8 in203.2 mm | 
                                                                                D - Cup Outer Diameter | 
                                                                        N/A 11.1250 in282.575 mm | 
                                                                                T - Width | 
                                                                        N/A 4 in101.6 mm | 
                                                                                C - Width | 
                                                                        N/A 3.25 in82.549 mm | 
| R - Cone Backface "To Clear" Radius1 | N/A 0.14 in3.600 mm | 
| r - Cup Backface "To Clear" Radius2 | N/A 0.030 in0.8 mm | 
                                                                                db - Cone Backface Backing Diameter | 
                                                                        N/A 8.74 in222 mm | 
                                                                                Da - Cup Frontface Backing Diameter | 
                                                                        N/A 10.87 in275.10 mm | 
| C90 - Dynamic Radial Rating (90 million revolutions)3 | N/A 29300 lbf130000 N | 
| C1 - Dynamic Radial Rating (1 million revolutions)4 | N/A 197000 lbf875000 N | 
| Ca90 - Dynamic Thrust Rating (90 million revolutions)5 | N/A 25500 lbf114000 N | 
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 | N/A 51000 lbf227000 N |