1.Noise is small, small smooth transmission 2.contact ratio is heavy - Update: 2009-07-15

1.Transfer between two intersecting axis movement and force 2.Gear cone distribution in the end to little by the main contractive decrescent 3.Big face to face standard parameters 4.Involute tooth profile curve for sphere - Update: 2009-07-15

1.The top line parallel with teeth every day, the straight weeks equal pressure Angle for, adc values 2.Parallel tooth crest line width equal to the cogging straight line of tooth thickness is called, the baseline size rack - Update: 2009-07-15

1.obtain larger ratio 2.Transfer space between crisscross of movement and axial force - Update: 2009-07-15

1.The internal gear tooth profile is concave, the tooth thickness and width of tooth gear in the corresponding scallop wide.and tooth thickness. 2.Within the circle of gear indexing circle, less than indexing dedendum circle circle. 3.In order to m... - Update: 2009-07-15

1.Vibration stability 2.Round metal rods 3.Transfer movement - Update: 2009-07-15

1.Vibration stability 2.Round metal rods 3.Transfer movement - Update: 2009-07-15