Crown Industrial is your source for silent chain.

Silent chain

All of our chains are designed and manufactured to deliver the best possible performance and long life.

Precision components result in better performing chain:

Link Plates – apertures are stamped in a two-step process to produce a straighter side-wall which is the key to long lasting chain
Precision pitch control, or aperture center distance, results in smooth, quiet, reliable operation
Link plates are heat treated for maximum wear life and toughness
Shot peening provides compressive forces on the apertures to maximize fatigue strength of the chain

Pins – The two pin design uses precision drawn material to produce consistent parts with the proper form to allow smooth articulation as the chain travels around the sprocket.
The case hardening heat treatment process give the pins maximum surface hardness to maximize chain service life while keeping the core of the pins strong and ductile to maximize chain tensile strength.

After lacing and riveting the chain, our pre-loading process is the final step in precision control of the chain pitch.  Pre-loading significantly reduces chain stretch during the initial wear-in when the chain is installed in your application.  This results in consistent chain that lasts longer and runs smoother.

Finally, the chain is lubricated and packaged with your choice of connecting methods.  Strands can be supplied endless for applications that allow for installation that way.  Otherwise, we offer a variety of rivet type of drilled pin type master links.  Click here for more information on master link options.

SC608 center guide (CG) silent chain

Center guide silent chain is the common style of silent chain, and our chains are designed to be compatible with any ASME standard silent chain sprocket of the same type.

Industry standard part descriptions begin with SC for silent chain, followed by the pitch expressed as a function of 1/8’s of an inch, and end with the chain width expressed as a function of 1/4’s of an inch.  So a 3/4" pitch, 2 inch wide, center guide chain would be described as SC 6 (3/4 = 6/8) 08 (2” = 8/4) CG

Below is a summary of standard silent chain sizes.  Click here for detailed specifications on standard sizes.  Other widths, chains with multiple guides and custom products are also available on request.  Click here for details, or contact us.  Wider chains for conveyor applications are also available.

SC404 side guide (SG) silent chain

Side guide silent chain also available in all standard silent chain pitches and widths, and our chains are designed to be compatible with any ASME standard silent chain sprocket of the same type.

Industry standard part descriptions begin with SC for silent chain, followed by the pitch expressed as a function of 1/8’s of an inch, and end with the chain width expressed as a function of 1/4’s of an inch.  The final part of the description specifies the guide link location.  So a 3/4" pitch, 2 inch wide, side guide chain would be described as SC 6 (3/4 = 6/8) 08 (2” = 8/4)  SG

Below is a summary of standard silent chain sizes.  Click here for detailed specifications on standard sizes.  Other widths, chains with multiple guides, and custom products are also available on request.  Click here for details or contact us.  Wider chains for conveyor applications are also available.

3/16 pitch, side guide stainless steel silent chain

3/16 pitch, center guide silent chain

3/16” Silent Chain  3/16" chain specification sheet in PDF

Silent Chain - Inch  Silent chain specification sheet in PDF

Silent Chain Worksheet Printable PDF for chain identification and quote requests

3/16 pitch high-back silent chain

Round pin silent coupling chain

Crown Industrial offers a host of made-to-order products for specialized applications.

We can supply silent chain with a single round pin, either for chain drive applications, or for use in couplings.

We can also build duplex chain, which can engage sprockets on both sides of the chain.

In addition, spacing washers can be added for weight reduction and air flow through the chain in conveying applications.

We also offer high-back and other custom link shapes for unique applications.

We can provide replacement sprockets if needed, and we can fabricate complete chain cases or package drives if you desire the ease and convenience of receiving a complete assembly that is run tested and ready to go.  Chain cases are flexible in the location and spacing of the input and output shafts, and can be designed for a wide range of speed reducing or speed-up applications.

Contact us today with your application data and or technical support department can put together a package tailored to your specific requirements.

Connecting pin set (drilled pin, rocker, & roll pin)

We offer multiple options for connecting your silent chain. 

If your application allows for installation, the easiest connecting application is to have your chain manufactured endless, which eliminates the need for a master link.  The chain is supplied completely finished and connected from the factory.  This option is available on all chains, just specify “endless” after the strand length on your order.

In many applications, an endless chain is not practical because the drive does permit easy installation.  In those situations, either a rivet-type connecting link or a drilled-pin connecting link can be used.  Our standard connecting link is a drilled pin style.  The chain is supplied with special outside link plates on the end to accommodate the connecting pins.  This allows for quick and easy connection of the chain, even in tight spaces.

For applications where the extension length of the connecting pin is a concern, or if a rivet type connection is just preferred, we will supply the proper pins and outside links to accommodate this.  The pin ends are supplied with annealed ends for the proper hardness to rivet the end with hand tools without chipping or damaging the pins.  To receive rivet type connecting links with your chain, simply specify this on your order.

Master links are always provided with each strand of chain.  They are also available for purchase separately.  Click here for a quote.

**It is never recommended that master links be used to re-connect or repair a damaged chain.

**Our master links are designed to match our chain design.  It is never advisable to use master links from one manufacturer with chain from a different manufacturer, as they are not designed to be compatible.  Contact us with your application specific questions.