Straight-toothed sprocket wheel

flange

When it comes to selecting a pinion for use in a rack & pinion drive system, the pinion pitch diameter can have a huge effect on the system. ATLANTA has a wide range of pinions, including ISO flanged pinions, which gives the design engineer flexibility to optimize his design. The new ATLANTA TR ISO flanged pinions have pitch diameters smaller than their bolt circle diameter, which reduces the torque and reduction ratio required. The linear backlash from the gearbox is also reduced since the pinion radius is smaller. Another significant impact of using smaller pinions can be seen on the linear stiffness relating to the gearbox torsional rigidity. This linear stiffness is inversely proportional to the square of the pinion diameter; therefore, using a pinion half of the size would improve the linear stiffness by a factor of four.