KR
| RING No | Remarks | Dh | Do | w | d | Df | T | S | RING Safety factor of 3 | GROOVE Safety factor of 2 |
| KR-375 | KR-375 | 3.75 | 3.955 | 0.12 | 0.103 | 3.982 | 0.111 | 0.25 | 52310 | 27300 |
| KR-387 | KR-387 | 3.875 | 4.087 | 0.12 | 0.106 | 4.115 | 0.111 | 0.25 | 54050 | 29030 |
| KR-393 | KR-393 | 3.938 | 4.15 | 0.12 | 0.106 | 4.178 | 0.111 | 0.25 | 54930 | 29510 |
| KR-400 | KR-400 | 4 | 4.22 | 0.12 | 0.11 | 4.248 | 0.111 | 0.25 | 55800 | 31100 |
| KR-412 | KR-412 | 4.125 | 4.345 | 0.12 | 0.11 | 4.373 | 0.111 | 0.312 | 57540 | 32070 |
| KR-425 | KR-425 | 4.25 | 4.47 | 0.12 | 0.11 | 4.5 | 0.111 | 0.312 | 59280 | 33050 |
| KR-433 | KR-433 | 4.33 | 4.556 | 0.12 | 0.113 | 4.586 | 0.111 | 0.312 | 60400 | 34590 |
| KR-450 | KR-450 | 4.5 | 4.735 | 0.12 | 0.118 | 4.768 | 0.111 | 0.312 | 62770 | 37530 |
| KR-462 | KR-462 | 4.625 | 4.865 | 0.12 | 0.12 | 4.897 | 0.111 | 0.312 | 64510 | 39230 |
| KR-475 | KR-475 | 4.75 | 4.995 | 0.12 | 0.123 | 5.028 | 0.111 | 0.312 | 66260 | 41300 |
| KR-500 | KR-500 | 5 | 5.26 | 0.12 | 0.13 | 5.295 | 0.111 | 0.312 | 69740 | 45950 |
| KR-525 | KR-525 | 5.25 | 5.52 | 0.139 | 0.135 | 5.559 | 0.127 | 0.375 | 83790 | 50100 |
| KR-537 | KR-537 | 5.375 | 5.645 | 0.139 | 0.135 | 5.685 | 0.127 | 0.375 | 85780 | 51290 |
| KR-550 | KR-550 | 5.5 | 5.77 | 0.139 | 0.135 | 5.81 | 0.127 | 0.375 | 87780 | 52480 |
| KR-575 | KR-575 | 5.75 | 6.02 | 0.139 | 0.135 | 6.062 | 0.127 | 0.375 | 91770 | 54870 |
| KR-600 | KR-600 | 6 | 6.27 | 0.139 | 0.135 | 6.314 | 0.127 | 0.375 | 95760 | 57260 |
| KR-625 | KR-625 | 6.25 | 6.53 | 0.174 | 0.14 | 6.576 | 0.165 | 0.312 | 129590 | 61850 |
| KR-650 | KR-650 | 6.5 | 6.79 | 0.174 | 0.145 | 6.837 | 0.165 | 0.312 | 134780 | 66620 |
| KR-662 | KR-662 | 6.625 | 6.925 | 0.174 | 0.15 | 6.973 | 0.165 | 0.312 | 137370 | 70240 |
| KR-675 | KR-675 | 6.75 | 7.055 | 0.174 | 0.153 | 7.104 | 0.165 | 0.312 | 139960 | 73000 |
