包角修正系数K°包角*()18717016015014013012011010090Ka1.000.980.950.920.890.860.820.780.740.69普通V带的长度系列和带长修正系数Kl(GB/T 13575.1- 1992 )基准长度 Ld/mmKl基准长度 Ld/mmYzABzABcDE2000.8116001.160.990.930.842240.8218001.181.010.950.852500.8420001.030.980.882800.8722401.061.000.913150.8925001.091.030.933550.9228001.111.050.950.834000.960.8731501.131.070.970.864501.000.8935501.171.100.980.895001.020.9140001.191.131.020.915600.9445001.151.040.930.906300.960.8150001.181.070.960.927100.990.8256001.090.980.958001.000.8563001.121.000.979001.030.870.8171001.151.031.0010001.060.890.8480001.181.061.0211201.080.910.8690001.211.081.0512501.110.930.891000001.231.111.0714001.140.960.90。