1. Transmission Chains
Power transmission transmission chain chains are classified into six 
major groupings.
1.1 Standard Roller Chains. These chains are created for general usage.
1.2 POWERFUL Chains. These chains possess higher tensile power and greater fatigue strength.
1.3 Lube-Free Chains. These chains have longer put on life than regular chains without lubrication.
1.4 Environmentally Resistant Chains. Chains with particular corrosion resistance.
1.5 Specialty Chains, Type 1. For particular applications.
1.6 Specialty Chains, Type 2. For general designs.
Within these six groups, there are various types of chains available