20A-1/20B-1 umahluko wekhonkco

I-20A-1 / 20B-1 amatyathanga zombini luhlobo lwe-roller chain, kwaye zihluke kakhulu kwimilinganiselo eyahlukileyo.Phakathi kwabo, i-pitch yegama le-chain ye-20A-1 yi-25.4 mm, ububanzi be-shaft ngu-7.95 mm, ububanzi bangaphakathi bu-7.92 mm, kunye nobubanzi bangaphandle bu-15.88 mm;ngelixa i-pitch ye-20B-1 yekhonkco yi-31.75 mm, kwaye ububanzi be-shaft yi-10.16 mm, kunye nobubanzi obungaphakathi be-9.40mm kunye nobubanzi obungaphandle be-19.05mm.Ngoko ke, xa ukhetha le mixokelelwane mibini, kufuneka ukhethe ngokweyona meko.Ukuba amandla okuhanjiswa ancinci, isantya siphezulu, kwaye indawo incinci, unokukhetha ikhonkco le-20A-1;ukuba amandla okuhanjiswa makhulu, isantya siphantsi, kwaye indawo yanele ngokwaneleyo, ungakhetha ikhonkco le-20B-1.