Seven(7) Silent Chain Fundamentals

Center Guide Silent Chain and Sprockets
Center Guide Silent Chain and Sprockets

All silent chains are made up of stacked rows of flat, tooth shaped driving links that mesh with sprockets having compatible tooth spaces, much the way a rack and pinion mesh. Typically, chains will also contain guide links, whose purpose is to maintain proper tracking of the chain on sprockets. Washers or spacers may be present in some chain constructions. All of these components are held together by riveted pins located in each chain joint. Although all silent chains have these basic features there are still many many different styles, designs, and configurations.

Given the many possible variations in silent chain design it is important to understand some of the options that are available.

Note: Chains must always be accompanied by compatible sprockets. When considering different silent chain designs, it is essential that sprocket compatibility also be considered.

Click on a Selection

  1. Power Transmission or Conveying Chain?
  2. Center Guide, Side Guide, or Two Center Guides?
  3. Two Pin or Single Pin Joints?
  4. Pitch?
  5. Width?
  6. Duplex?
  7. Build Type, also known as "Buildup"

3) Two Pin or Single Pin Joints?
Two pin joints have pins that roll or rock on one another when the chain flexes. This type of joint minimizes friction, vibration, and wear while maximizing efficiency. Single pin chains contain a single round or oval pin in each joint. These are very simple to connect, resist fouling, and can be more economical for conveying or less rigorous PT applications.

Two Pin Joint
Two Pin Joint
Single Pin Joint
Single Pin Joint