Nā Hoʻohui RIGID (RM), ʻAno H/F mai RM12, RM16, RM25, RM30,RM35, RM40,RM45, RM50
| NUI | Bush NO. | Max Bore | A | C | D | E | F nom | G nom | H | J | L | |
| Metric | ʻīniha | |||||||||||
| RM12 | 1210 | 32 | 1 1/4" | 118 | 35 | 83 | 26 | 76 | 102 | 7 | 38 | 57 |
| RM16 | 1615 | 42 | 1 1/2" | 127 | 43 | 80 | 38 | 89 | 105 | 7 | 38 | 83 |
| RM25 | 2517 | 60 | 2 1/2" | 178 | 51 | 123 | 45 | 127 | 149 | 7 | 48 | 97 |
| RM30 | 3030 | 75 | 3" | 216 | 65 | 145 | 76 | 152 | 181 | 7 | 54 | 159 |
| RM35 | 3535 | 90 | 3 1/2" | 248 | 75 | 178 | 89 | 178 | 213 | 7 | 67 | 185 |
| RM40 | 4040 | 100 | 4" | 298 | 76 | 210 | 102 | 216 | 257 | 7 | 79 | 210 |
| RM45 | 4545 | 110 | 41/2" | 330 | 86 | 230 | 114 | 241 | 286 | 7 | 89 | 235 |
| RM50 | 5050 | 125 | 5" | 362 | 92 | 260 | 127 | 267 | 314 | 7 | 92 | 260 |
Hāʻawi ʻo Rigid Couplings（RM Couplings) me nā lāʻau Taper Bore i nā mea hoʻohana i ka hoʻoponopono wikiwiki a me ka maʻalahi o nā kumu hoʻohui paʻa me ka manaʻo o kahi koho ākea o nā nui kumu o nā lāʻau Taper Bore. Hiki i ka flange kāne ke hoʻokomo i ka nahele mai ka ʻaoʻao Hub (H) a i ʻole mai ka ʻaoʻao Flange (F). Loaʻa i ka wahine ka lāʻau kūpono F e hāʻawi ana i ʻelua ʻano hui hui hiki ke hoʻohui ʻia ʻo HF a me FF. I ka hoʻohana ʻana ma nā ʻaoʻao ākea, koho i ka hui kūpono loa.
