Anulus Terminalis Formae Pyriformis
Conexiones piriformes ad usum ordinum catenarum trahendarum utuntur.
Usus communis conexionum piriformium est ad coniungendum anulum vulgarem ad alium anulum vulgarem diametro maiorem.
In quibusdam casibus, si approbata a classe, ad coniungendum anulum vulgarem catenae anchoralis ad anulum anchoralem uti potest.
Systema claudendi id idoneum reddit ad usum cum diametris catenarum maioribus.
Specifica:

| No |
Diameter Catena (mm) |
A (mm) |
BMM |
CMM |
D (mm) |
Emm |
F (mm) |
Gmm |
HMM |
Jmm |
Kmm |
PondusKg |
OnusProbationisKg |
OnusRupturaeKg |
| 2 |
19-24 |
199 |
136 |
39 |
26 |
33 |
58 |
26 |
39 |
17 |
30 |
3,6 |
34 000 |
48 500 |
| 3 |
25-30 |
245 |
172 |
47 |
31 |
40 |
66 |
37 |
45 |
19 |
35 |
6,5 |
53000 |
75 700 |
| 4 |
32-40 |
302 |
206 |
63 |
41 |
49 |
83 |
42×47 |
58 |
26 |
43 |
13.0 |
91 367 |
130 524 |
| 5 |
42-51 |
381 |
263 |
77 |
52 |
68 |
100 |
58 |
74 |
32 |
52 |
27.0 |
145 513 |
207 512 |
| 6 |
52-60 |
462 |
315 |
94 |
62 |
81 |
113 |
64 |
90 |
38 |
65 |
49,0 |
197 825 |
282 461 |
| 7 |
62-79 |
568 |
379 |
121 |
81 |
97 |
153 |
84 |
116 |
48 |
76 |
95,0 |
329 674 |
469 987 |
| 8 |
81-92 |
658 |
422 |
139 |
96 |
135 |
155 |
112 |
135 |
54 |
79 |
150,0 |
434 399 |
619 987 |
| 9 |
94-95 |
700 |
440 |
148 |
98 |
130 |
159 |
124×114 |
148×134 |
57 |
89 |
236,0 |
459 892 |
656 697 |
| 10 |
97-102 |
900 |
580 |
194 |
122 |
168 |
194 |
130×148 |
181 |
73 |
108 |
386,0 |
522 095 |
746 432 |