Zolumikizira za NM ndi NBR Rubber Spider, Mtundu 50, 67, 82, 97, 112, 128, 148, 168

| SIZE | Bore | D | OD | L | K | S | |
| Zochepa. | Max. | ||||||
| 50 | 7 | 19 | 33 | 50 | 25 | 12.5 | 2.0±0.5 |
| 67 | 9 | 28 | 46 | 67 | 30 | 15.0 | 2.5±0.5 |
| 82 | 10 | 32 | 53 | 82 | 40 | 16.0 | 3.0±1.0 |
| 97 | 12 | 42 | 69 | 97 | 50 | 20.0 | 3.0±1.0 |
| 112 | 14 | 48 | 80 | 112 | 60 | 35.0 | 3.5±1.0 |
| 128 | 18 | 55 | 90 | 128 | 70 | 41.0 | 3.5±1.0 |
| 148 | 22 | 65 | 107 | 148 | 80 | 48.0 | 3.5±1.0 |
| 168 | 28 | 75 | 125 | 168 | 90 | 540 | 3.5±1.0 |
| SIZE | Mphamvu | Liwiro Lalikulu Kwambiri (rpm) | |
| Nomal (NM) | Max(NM) | ||
| 50 | 12.74 | 22.54 | 13500 |
| 67 | 21.56 | 39.20 | 10000 |
| 82 | 49.00 | 88.20 | 8000 |
| 97 | 102.90 | 186.20 | 7000 |
| 112 | 163.66 | 294.00 | 6000 |
| 128 | 261.66 | 470.40 | 5000 |
| 148 | 408.66 | 735.00 | 4500 |
| 168 | 681.10 | 1225.00 | 4000 |

Cholumikizira cha NM chimakhala ndi ma hubs awiri ndi mphete yosinthasintha yomwe imatha kubweza mitundu yonse ya zolakwika za shaft.Mphete zimapangidwa ndi rabara ya Nitile (NBR) yomwe ili ndi mphamvu yayikulu yochepetsera kutentha mkati yomwe imalola kuyamwa ndi kuyeretsa. Imalimbana ndi mafuta, dothi, mafuta, chinyezi, ozoni ndi mankhwala ambiri osungunulira.

