Provides large reduction ratios (generally up to 1:7).

Chains can accommodate long shaft center distances (normally less than 4 m), and are more versatile.

Multi-axis drive is possible. Both sides of the chain can be used.

Easy installation and replacement (easy to cut and connect chains).

Drive use is possible even when shafts are vertical, as long as the chain receives support in short distances between the shafts.

The sprocket diameter can be smaller than a belt while transmitting the same torque.

Sprockets are subject to less wear than gears because sprockets distribute the load over their many teeth.

High shock absorbency compared to gears.

High transmission efficiency.

Chains have speed variation, called chordal action, which is caused by the polygonal effect of the sprockets. (The effect can be reduced by increasing the number of sprocket teeth. )

Needs lubrication depending on the transmission speed.

Chains wear and elongate. Measures for adjusting chain slack need to be considered.

Caution is required with centering and axis parallelism. Susceptible to thrust loads.

Chains need to be held firm so they do not get twisted or tangled during unpacking and installation.