Rack And Pinion Gear Calculation

The torque on the pinion is simply the tangential force force on the rack divided by the pinion radius.

Rack and pinion gear calculation.

T p torque on pinion nm ft lb r p pinion radius m ft. Figure 4 3 1 shows the the meshing of standard gear and a rack. The calculator supports both straight tooth and helical rack and pinion pairs. Hardness of the rack.

The following are calculations for center distance a and tip and root clearance c when module m 2 pinion z 1 20 gear z 2 40 reference diameter of pinion d 1 20 2 40 reference diameter of gear d 2 40 2 80. Rack and pinion drive calculation and selection the values given in the load table are based upon uniform smooth operation khß 1 0 and reliable grease lubrication. The rack s teeth are trapezoidal while the pinion has an involute tooth profile. In stock and ready to ship.

An important principle is that you realize that the calculation and selection rack pinion gearbox and motor is done by trial and error. In the example above the12 tooth pinion was given sufficient correction to prevent undercut and the residual profile shift was given to the mating gear. Choose from our selection of rack and pinion gears including metal gears and gear racks plastic gears and gear racks and more. Rack and pinion calculator the following online calculator computes the basic dimensions and tooth profiles of a meshing rack and pinion based on the pinion s module number of teeth pressure angle usually 20 and profile shift.

Calculating rack and pinion gear ratio instead of counting the number of teeth in each gear measure the distance the rack moves in inches. The rack and pinion calculator instantly generates the tooth profiles of the involute gear and meshing rack with trapezoidal teeth based on the number of teeth on the pinion module pressure angle and profile shift. Measure the distance from the end of the rack to an arbitrary point turn the pinion one full revolution and then measure the distance again. You have a good chance that you have to do the calculations again with other parameters such as the diameter of the pinion or the quality read in this case.