Doublears na sama-sama a kowane yanki na Asiya
NK2040SB
| Tsinkaye | mm |
| Yaren hakori (t) | 7.2 |
| Sarƙa | mm |
| Fitch (p) | 25.4 |
| Nisa na ciki | 7.95 |
| Roller φ (dr) | 7.95 |
| Iri | Hakora | Do | Dp | Gundura | BD | BL | Wt kg | Abu | ||
| Jari | Min | Max | ||||||||
| NK2040SB | 6 1/2 | 59 | 54.66 | 13 | 15 | 20 | 35 | 22 | 0.20 | C45 m |
| 7 1/2 | 67 | 62.45 | 13 | 15 | 25 | 43 | 22 | 0.30 | ||
| 8 1/2 | 76 | 70.31 | 13 | 15 | 32 | 52 | 22 | 0.42 | ||
| 9 1/2 | 84 | 78.23 | 13 | 15 | 38 | 60 | 25 | 0.61 | ||
| 10 1/2 | 92 | 86.17 | 14 | 16 | 46 | 69 | 25 | 0.82 | ||
| 11 1/2 | 100 | 94.15 | 14 | 16 | 51 | 77 | 25 | 0.98 | ||
| 12 1/2 | 108 | 102.14 | 14 | 16 | 42 | 63 | 25 | 0.83 | ||
NK 2050sb
| Tsinkaye | mm |
| Yaren hakori (t) | 8.7 |
| Sarƙa | mm |
| Fitch (p) | 31.75 |
| Nisa na ciki | 9.53 |
| Roller φ (dr) | 10.16 |
| Iri | Hakora | Do | Dp | Gundura | BD | BL | Wt kg | Abu | ||
| Jari | Min | Max | ||||||||
| NK2050SB | 6 1/2 | 74 | 68.32 | 14 | 16 | 25 | 44 | 25 | 038 | C45 m |
| 7 1/2 | 84 | 78.06 | 14 | 16 | 32 | 54 | 25 | 0.55 | ||
| 8 1/2 | 94 | 87.89 | 14 | 16 | 45 | 65 | 25 | 0-76 | ||
| 9 1/2 | 105 | 97.78 | 14 | 16 | 48 | 73 | 28 | 1-06 | ||
| 10 1/2 | 115 | 107,72 | 14 | 16 | 48 | 73 | 28 | 1.16 | ||
| 11 1/2 | 125 | 117.68 | 16 | 18 | 48 | 73 | 28 | 1.27 | ||
| 12 1/2 | 135 | 127.67 | 16 | 18 | 48 | 73 | 28 | 1.40 | ||
Nk 2060sb
| Tsinkaye | mm |
| Yaren hakori (t) | 11.7 |
| Sarƙa | mm |
| Fitch (p) | 38.10 |
| Nisa na ciki | 12.70 |
| Roller φ (dr) | 11.91 |
| Iri | Hakora | Do | Dp | Gundura | BD | BL | wt kg | Abu | ||
| Jari | Min | Max | ||||||||
| NK2060SB
| 6 1/2 | 88 | 81.98 | 14 | 16 | 32 | 53 | 32 | 0.73 | C45 m
|
| 7 1/2 | 101 | 93.67 | 16 | 18 | 45 | 66 | 32 | 1.05 | ||
| 8 1/2 | 113 | 105.47 | 16 | 18 | 48 | 73 | 32 | 133 | ||
| 9 1/2 | 126 | 117.34 | 16 | 18 | 55 | 83 | 40 | 203 | ||
| 10 1/2 | 138 | 129.26 | 16 | 18 | 55 | 83 | 40 | 2.23 | ||
| 11 1/2 | 150 | 141.22 | 16 | 18 | 55 | 80 | 45 | 256 | ||
| 12 1/2 | 162 | 153.20 | 16 | 18 | 55 | 80 | 45 | 281 | ||
Double Pitch Fitar da Sarkar Sarkar Sarkar galibi suna da kyau don adana sarari kuma suna da tsawon rai fiye da daidaitattun cututtuka. Ya dace da dogon sarkar fulawa, fitsari biyu suna haifar da mafi hakora fiye da daidaitaccen yanki na wannan yanki na littafin. Idan sarkar isar da isar da ta dace, tsintsaye biyu na filaye na biyu tabbas suna da mahimmanci la'akari.
Spkous don sils na roller sau biyu ana samuwa a cikin ƙirar guda ɗaya ko sau biyu. Single-toothed sprockets don pitch roller sarƙoƙi suna da irin halin da aka daidaita cututtukan jini guda ɗaya kamar din 8187 (ITO 606). Saboda manyan sarkar sarkar silsila ninki biyu sarkar sarƙoƙi sau biyu yana yiwuwa don karuwa ta hanyar gyare-gyare na hakori.
Standary irin nau'ikan nau'ikan cututtukan jini iri ɗaya ne a waje na diamita da kuma hoton hakora guda ɗaya kawai tare da bayanin haƙori daban-daban don ba da damar siyar da sarkar sarkar. A kan ko da ƙididdigar haƙori, waɗannan cututtukan da kawai suke yin aiki tare da sarkar a kan kowane haƙori biyu saboda akwai hakora biyu a kowane rami. A kan ƙididdigar hakori, duk an ba da haƙoran haƙori kawai akan kowane juyin juya halin wanda ba shakka yana ƙaruwa da rayuwar ta Sprack.
