hap 5.2 The fundamental law of gearing(2) Ow ON OP ON, OO,P T ON OP K The fundamental law of gearing The angular velocity ratio between the gears of a gearset remains constant throughout the mesh O, O,PThe fundamental law of gearing: The angular velocity ratio between the gears of a gearset remains constant throughout the mesh. O P O P O N O N m in out V 1 2 1 1 2 2 1 2 = = = =     O P O P O N O N T T m out i n i n out T 2 1 2 2 1 1 2 1 = = = = =     Chap.5.2 The fundamental law of gearing(2) r1 r2 . 1 2 1 1 2 2 1 2 const O P O P O N O N m i n out V = = = = =     1 1 1 2 2 2 O N  = O N 