Rack and pinion drive systems are one of the most common methods used to move machine axes.They are especially preferred in machines with long stroke distances.If you are going to use rack and pinion in your machine and you need precision, you should definitely choose helical rack and pinion.
However, when making this choice, you should first pay attention to the cost of rack and pinion.Because the cost of helical rack and pinion is more than straight type.Helical ones are expensive because they are more difficult to manufacture.