Types of Track Chains – Dry Chains vs. Lubricated Chains
Lubricated chains are track chains that have lubricants permanently sealed into the space between the pin and the bushing. These seals are built to provide lasting lubrication and reduce the amount of wear that occurs due to friction on the pins and bushings. Unlike with dry chains, lubrication is automatic. However, lubricated chains usually cost more than dry chains in the short term.
On the other hand, dry chains can be manufactured with grease between the pin and bushings, but the seals on these chains are generally less durable and may leak relatively quickly. Some dry chains may come sealed, but they may not be lubricated. With most dry chains, you will have to routinely lubricate your pins and bushings in order to avoid wear, as lubrication is not automatic. While dry chains are less expensive than lubricated chains, they will experience a significant amount of wear without sealed lubrication and will likely cost you a good deal of money in replacement parts over time.