# Parameters for Cylinder Gears (Spur or Helical)

This chapter provides detailed information for the parameters that are used when defining, aligning, measuring, and evaluating a cylinder gear. This can be either a spur or helical gear.

See the "Getting Started" chapter for the steps for using PC-DMIS Gear.

The following topics provide information for a cylinder gear:

- Defining a Cylinder Gear

- Aligning a Cylinder Gear

- Measuring a Cylinder Gear

- Evaluating a Cylinder Gear