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平带无压紧轮的开式传动平带有压紧轮的开式传动平带交叉传动V带传动0.980.970.900.95链轮传动焊接链片式关节链滚子链无声链0.930.950.960.98滑动轴承润滑不良润滑正常润滑特好（压力润滑）液体摩擦0.940.970.980.99滚动轴承滚珠轴承（稀油润滑）滚柱轴承（稀油润滑）0.990.98摩擦传动平摩擦传动槽摩擦传动卷绳轮0.850.960.880.900.95联轴器浮动联轴器齿轮联轴器弹性联轴器万向联轴器(3)梅花接轴0.970.990.990.990.9950.970.980.950.970.970.98复合轮组滑动轴承(i=26)滚动轴承(I=26)0.900.980.950.99减（变）速器单级圆柱齿轮减速器二级圆柱齿轮减速器单级行星圆柱齿轮减速器（NGW类型负号机构）单级行星摆线针轮减速器单级圆锥齿轮减速器二级圆锥-圆柱齿轮减速器无级变速器0.970.980.950.960.960.980.900.970.950.960.940.950.920.95丝杠传动滑动丝杠滚动丝杠0.300.600.850.95
