81X Chain | 81X Conveyor Roller Chain
81X chain features a 2.609" pitch and is categorized as a steel bushed roller chain within the engineer class of chains. Its commonly referred to as an 81X conveyor chain due to the straight side-bar design and common usage within conveying applications. Most commonly, this chain is found in the lumber and forestry industry and is available with upgrades such as "chrome pins" or heavier-duty side-bars. Our high-strength chain is manufactured to ANSI specifications and dimensionally interchanges with other brands, meaning sprocket replacement is not necessary. We also supply 81X 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 world such as lumber, agricultural, mills, grain handling, and many more drive and conveying applications.
Quad staked Rivets
Though dimensionally equivalent to other chains our 81X 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 81X 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 its 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 lifespan when using a solid bushing solid roller (SBR) chain than when not using one.
Material
All of our 81X chains are manufactured using superior alloys with each component being heat-treated to provide excellent wear life as well as extreme durability.
81X Chain Dimensions
81X Chain
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Size
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(P)
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Roller Width (W)
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Roller Dia. (R)
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Plate Height (H)
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Plate Thickness (T)
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Pin Dia. (D)
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Overall Width (F)
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Overall CL Width
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81X
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2.609"
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1.062"
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0.905"
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1.112"
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0.156"
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0.437"
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1.875"
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2.250"
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81X Rooftop Chain
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Size
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(P)
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(W)
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(R)
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(D)
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(L1)
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(L2)
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(H)
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(T)
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(M)
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(RH)
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81X Rooftop
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2.609"
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1.063"
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0.905"
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0.437"
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0.945"
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1.118"
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1.125"
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0.154"
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2.5"
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1"
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Note: 81X Rooftop Chain is also known as 81X camelback chain and 81X RT chain.
81X Sharp Top Chain
81X UHMW-Top Chain:
81X Chain Attachments
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81X Pusher Lug
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81X Bullnose Pusher Lug
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81X Cast Steel Pusher Lug
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81X Pipe Pusher Lug
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81X FS1
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81X FG9
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81X SF22
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81X GT22
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81X H0
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81X K1C
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81X K3
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81X SK-0
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--
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81X SF1
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81X SF1M1
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81X SF1A
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High Strength 81X Roller Chain
Some applications may require a stronger version of 81X series chains. Below is the strength compared to the various options for a stronger 81X chain. Note that all of these chains will operate on the same sprockets.
81XH Chain - 9,000 LBS Stronger
81XHH (XHD) Chain - 18,000 LBS Stronger
We also stock 81X chain with chrome-plated pins for specific applications.
81X Conveyor Chain Maintenance
Maintaining an 81X chain is vital to ensure you get the most out of your chain. We stock a variety of tools and accessories to go along with your 81X chain.
81X Chain Breaker:
The most popular 81X accessory we sell is our Made in USA 81X Chain Breaker, it effortlessly breaks the quad-staked rivets of your chain and makes it easy for re-sizing the chain or for making repairs.
81X Chain Puller:
The Made in USA Cable Operated Chain Puller we supply uses a heavy-duty ratcheting system to take tension off of the chain when breaking it or making repairs.
Chain Guide:
The Chain guide creates an easy-gliding low friction surface for the 81X chain to run on. Typically it is made from UHMW material and is channel style like the above photo. Using a guide drastically increases the life of a chain by eliminating friction and metal-on-metal contact.
Chain Lube:
Keeping your 81X chain lubricated can also play an important role for extending the overall chain life, it also promotes a smoother operating chain by reducing internal friction. We supply roller chain lube in spray cans or 5-gallon buckets.
81X Sprockets
   
When it comes to Engineer-class 81X 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.
Note: Plastic and stainless steel 81X sprockets are also available upon request.
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