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81XHH Roller Chain
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81XHH Chain

81XHH chain features a 2.609" pitch and is categorized as a steel bushed roller chain within the engineer class of chains. It is commonly known as 81X heavy heavy or extra heavy-duty 81XHH roller chain because if the implementation of a thicker sidebar which makes the chain able to withstand a higher shock-load and offers a superior tensile strength, this is the strongest version of 81X series chains on the market today. Our chain is manufactured to ANSI specifications and dimensionally interchanges with other brands. We also supply 81XH sprockets, attachments, and we have a Made in USA 81X chain breaker. Because of its high-strength and effective design this chain can be found in applications all around the wold such as lumber, agricultural, mills, grain handling, and many more drive and conveying applications.

Quad staked Rivets

Though dimensionally equivalent to other chains our 81XHH heavy chain is manufactured with quad-staked rivets. The main benefit of this is that the chain can withstand higher shock loads and side-loading without coming apart.

Solid Bushing Solid Roller Design

The next major benefit to our 81XHH chain versus others is the use of solid bushings and solid rollers. What this does is create a much less-friction environment for the chain and it's internal components. When using a split bushing, over time the split will become "oval shaped" thus rubbing on the inside of the roller which creates high-friction and high wear. The same thing will happen with a split roller with the addition of causing unnecessary sprocket wear in the process. This is why you'll notice a much better life-span when using a solid bushing solid roller (SBR) chain then when not using one.

Material

All of our 81XHH chains are manufactured using superior alloys with each component being heat-treated to provide excellent wear life as well as extreme durability.


81XHH Sprockets


When it comes to engineer-class 81XHH sprockets there are four standard configurations. A-Plate, B-hub, C-hub, and split sprockets. However, we also supply idler sprockets that use bearings or bronze bushings depending on the sprocket size and application. Below is a chart that shows the standard tooth-counts for 81x chain sprockets.
A-Plate B-Hub C-Hub Split Sprockets























































Frequently Asked Questions

  • If your order is less than $300, no problem! Please give us a call at 407-347-3519 or email Sales@usarollerchain.com, and we will be happy to assist you!

  • USA Roller Chain utilizes an extensive network of vendors and warehouses to ensure you get your items quickly! Our primary roller chain warehouse is located in Clermont, FL, but we have warehouses located all across the United States. Your order will be shipped from the closest warehouse to you that has your requested product in stock. This speeds up transit times and saves you money on shipping! If you have any questions about where an item will ship from, please CONTACT US

  • In-stock items are typically shipped out in 1-3 business days.Made-to-order item lead times vary from 1-2 days up to 14-20+ weeks, depending on the product. If you need your items urgently, please let us know, and we will do our best to meet your required delivery date! If you have any questions, please CONTACT US

  • If you are having an issue with your order, please CONTACT US as soon as possible so we can resolve it for you.

    Most in-stock items can be returned within 30 days of the shipment date. MTO or Custom orders are not eligible for a return or refund. For a detailed explanation of our return policies, please click here.

  • Absolutely! We may be called "USA Roller Chain", but we ship worldwide! Please CONTACT US for Export/International quotes or orders.