D1 / D3 / D5 Attachment Roller Chain

| About Extended Pin Attachment Roller Chain 

D1 and D3 are one end of pins extended. DD1 and DD3 are referred as extended pin on both sides.

D5 type is only available with double pith chains and has the bigger diameter at the extended side and assembled on the center of a link. 

D5 double pitch chain has three different rollers to choose from: standard roller, oversized roller, and engineered plastic oversized roller. 

Customized pin lengths, outer diameters and pin interval can be produced per your requirement.

Other special design or DD1 and DD3 demand, please contact us.

Tips for name of extended pin attachments: 

• D1 is referred to one extended pin on a pin link; “DD1” is referred as  extended pin on both sides
• D3 is referred two extended pins on a pin link; “DD3” is referred as  extended pin on both sides
• D5 means the extended pin has bigger diameter on the center of a link

Our extended pin chains in carbon steel are consisted of solid bushings, solid rollers, and high-precision components that undergo heat treatment and shot peening.

For corrosive environment, we offer different corrosion resistant coatings.

Stainless steel extended pin chain is another choice if the chain is used on food equipment or applications requiring corrosion resistance and clean environment simultaneously. 

We also have patented high strength stainless steel chains: MEGA-II series chain with D1 and D3 attachments for higher tensile strength, allowable load and longer working life.

Our self-lube (NSL) extended pin chain is an ideal option for hard-to-reach places or difficulty in lubricating to save you maintenance time and cost.

| Features

• D1/DD1, D3/DD3 and D5 extended pin attachments
• Consisted of heat treated and shot peened components   
• Solid bushing and roller for carbon steel chains
  
• Stainless steel/Carbon steel with corrosion resistant coating available
• Matched and tagged available
• Custom-designed pins are available