Rārangi tauira mekameka roera porotiti e whakamahia whānuitia ana, te ripanga whakatakotoranga rahi tauira porotiti e whakamahia whānuitia ana, ngā rahi mai i te 04B ki te 32B, ko ngā tawhā ko te piko, te diameter roera, te rahi o te tau niho, te mokowā rarangi me te whānui o roto o te mekameka, me ētahi atu, tae atu ki ētahi tikanga tatau mekameka o ngā porowhita. Mō ētahi atu tawhā me ngā tikanga tatau, tirohia te tuku mekameka i te pukapuka tuatoru o te pukapuka hoahoa mīhini.
Ko te tau mekameka i roto i te ripanga ka whakareatia ki te 25.4/16mm hei uara piko. Ko te kupu whakamutunga A o te tau mekameka e tohu ana i te raupapa A, he rite ki te raupapa A o te paerewa o te ao ISO606-82 mō ngā mekameka roera, ā, he rite ki te paerewa o Amerika ANSI B29.1-75 mō ngā mekameka roera; ko te raupapa B he rite ki te raupapa B o te ISO606-82, he rite ki te paerewa mekameka roera o Peretānia BS228-84. I tō tātou whenua, ko te raupapa A te nuinga e whakamahia ana mō te hoahoa me te kaweake, ko te raupapa B te nuinga e whakamahia ana mō te tiaki me te kaweake.
Koinei te ripanga rahi tauira o ngā pīkau e whakamahia whānuitia ana:
Kia mōhio: Ko te rarangi kotahi i roto i te ripanga e pā ana ki te pīkau kotahi-rarangi, ā, ko te rarangi maha e pā ana ki te pīkau maha-rarangi.
Ngā Whakatakotoranga o te Sprocket
Te Diameter o te Roera Tauira Te Matotoru o te Niho (Rārangi Kotahi) Te Matotoru o te Niho (Rārangi Maha) Te Whānuitanga o te Mekameka o te Rārangi
04C 6.35 3.3 2.7 2.5 6.4 3.18
04B 6 4 2.3 2.8
05B 8 5 2.6 2.4 5.64 3
06C 9.525 5.08 4.2 4 10.13 4.77
06B 9.525 6.35 5.2 5 10.24 5.72
08A 12.7 7.95 7.2 6.9 14.38 7.85
08B 12.7 8.51 7.1 6.8 13.92 7.75
10A 15.875 10.16 8.7 8.4 18.11 9.4
10B 15.875 10.16 8.9 8.6 16.59 9.65
12A 19.05 11.91 11.7 11.3 22.78 12.57
12B 19.05 12.07 10.8 10.5 19.46 11.68
16A 25.4 15.88 14.6 14.1 29.29 15.75
16B 25.4 15.88 15.9 15.4 31.88 17.02
20A 31.75 19.05 17.6 17 35.76 18.9
20B 31.75 19.05 18.3 17.7 36.45 19.56
24A 38.1 22.23 23.5 22.7 45.44 25.22
24B 38.1 25.4 23.7 22.9 48.36 25.4
28A 44.45 25.4 24.5 22.7 48.87 25.22
28B 44.45 27.94 30.3 28.5 59.56 30.99
32A 50.8 28.58 29.4 28.4 58.55 31.55
32B 50.8 29.21 28.9 27.9 58.55 30.99
Wā tuku: 23 o Ākuhata-2023