The next largest group of gears used to transfer power and rotate in different direction. Bevel gear is the most common type of nonparallel-coplanar gears. The face is angled bevel gear so that the shafts of two bevel gears meshed rotation switch in 4 different direction. The gears can also be used in different gear ratios, so that the rotation direction and change amount of power in one step. This type of equipment is very important in many automotive applications. Bevel gears are generally positioned vertically, but can be mounted on almost any angle shaft. Straight bevel gears is the least costly type of bevel gears, but they are also limited in the implementation of similar reasons as the spur gear. The other type of gear, and the most advanced equipment discussed in this report, the spiral bevel gear.

The plant is the angled face of bevel gear and also has teeth like those of a helical gear angled. Varies the angle of the teeth along the face of the gear, which creates a curved tooth shape. The equipment allows several teeth to be in touch at the same time, meaning that they transfer much more power than standard bevel gear, but still share the property to change the direction of motion. Spiral equipment is best suited for applications higher speed than the straight bevel gear. However, the thrust force generated by the spiral gear much more than the straight bevel gear and must meet. The cost of spiral bevel gear sets are also very high compared to most other types of gears.

Other gears in this category, which is not discussed in this report, the hypoid bevel gear and bevel gear Zerol. The category Nonparallel-noncoplanar of gears, including worm gears primarily, have been omitted from this report.