Mbunge wa Usalama wa Aina ya Mbunge ni zana muhimu ya kushikilia collars za kuchimba visima, bomba la pamoja na bomba ndogo za bega. Kwa kuongeza tu au kupunguza kiunga cha mnyororo, mahitaji anuwai ya kamba ya bomba yanaweza kutumika. Bidhaa zimetengenezwa na kutengenezwa kulingana na mahitaji ya API Spec 7K.
Mfano | Kipenyo cha bomba linalotumika (in) | Idadi ya viungo |
Mp-s | 27/8-41/8 | 7 |
4-5 | 8 | |
Mp-r | 41/2-55/8 | 7 |
51/2-7 | 8 | |
63/4-81/4 | 9 | |
8-91/4 | 10 | |
91/4-101/2 | 11 | |
Mp-m | 101/2-111/2 | 12 |
111/2-121/2 | 13 | |
121/2-135/8 | 14 | |
135/8-143/4 | 15 | |
143/4-157/8 | 16 | |
Mp-l | 157/8-17 | 17 |
17-181/2 | 18 | |
181/8-193/8 | 19 | |
MP-XL | 193/8-203/8 | 19 |
203/8-211/2 | 20 | |
21-225/8 | 21 | |
225/8-223/4 | 22 | |
233/4-247/8 | 23 | |
247/8-26 | 24 | |
26-271/8 | 25 | |
293/8-301/2 | 28 |