IMPORTANT FORMULAS IN ENGINEERING

POWER-TORQUE		T: Torque P:Power N: Rotation Speed
KW-KVA RELATIONSHIP		P    : Power KVA: Kilowatt-Amp V    : Voltage A    : Current 0.8  : Power factor
PUMP MOTOR POWER		P    : Power Q: Pump capacity p: Pressure η: Efficiency
TURNING TORQUE		T: Torque (N-m) M: Mass of rotating object (kg) JM: Rotation inertia force (kg-m2) α: Angular acceleration of the rotating object (rad/sec2) R: Radius of rotating object
CENTRIFUGAL FORCE		F : Centrifugal force (N) M : Rotating Mass (Kg) R : Rotation radius (Meters) w : Angular rotation speed (rad / sec)

 

GEAR FORMULAS:

In order to draw a gearwheel, it is necessary to define the dimensions required. The following formulas are used to calculate the dimensions shown in the adjacent figure.

Do= Pitch diameter Do= M (Module). Z (Number of teeth)	Dt=Base circle diameter Dt=Do.Cos20°
Dü=Tooth thickness at tip Dü=Do+(2.M)	Dd=Tooth thickness at base circle Dd=Do-2,33 . M
Tooth thickness=t/2 t=Step t=M.π	B=Tooth width B=10 . M

 

STANDARD MOTOR POWERS

kW	HP	kW	HP	kW	HP
0,06	0,08	3	4	55	75
0,09	0,12	4	5,5	75	100
0,12	0,16	5,5	7,5	90	125
0,18	0,25	7,5	10	110	150
0,25	0,35	11	15	132	180
0,37	0,5	15	20	160	220
0,55	0,75	18,5	25	185	250
0,75	1	22	30	200	270
1,1	1,5	30	40	250	340
1,5	2	37	50	315	425
2,2	3	45	60	355	480

 

A lot to do together!