1. Transmission Chains
Power tranny chains are classified into six major groups.
1.1 Regular Roller Chains. These chains are designed for general usage.
1.2 
High Performance Chains. These chains possess higher tensile strength and greater fatigue power.
1.3 Lube-Free Chains. These chains have longer wear life than standard chains without lubrication.
1.4 Environmentally Resistant Chains. Chains with special corrosion resistance.
1.5 Specialized Chains, Type 1. For particular applications.
1.6 Specialized Chains, Type 2. For general designs.
Within these six transmission chain groups, there are several types of chains available
