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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.

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

Roller Width (W)
Roller Dia. (R)
Plate Height (H)
Plate Thickness (T)
Pin Dia. (D)
Overall Width (F)
Overall CL Width
81X 2.609" 1.062" 0.905" 1.112" 0.156" 0.437" 1.875" 2.250"

81X Rooftop Chain

81X Rooftop 2.609" 1.063" 0.905" 0.437" 0.945" 1.118" 1.125" 0.154" 2.5" 1"
Note: 81X Rooftop Chain is also known as 81X camelback chain and 81X RT chain.

81X Sharp Top Chain

81X Sharp Top Chain
81X Sharp Top Chain
81X UHMW-Top Chain:

81X UHMW Top - Regular 2.609" 1-1/8" 2-5/8" 1-7/8" 7/8" 2-1/8"
81X UHMW Top - Narrow 2.609" 1-1/8" 2-1/8" 1-7/8" 7/8" 2-1/8"

81X Chain Attachments

81X Pusher Lug 81X Bullnose Pusher Lug 81X Cast Steel Pusher Lug 81X Pipe Pusher Lug

81X FS1 81X FG9 81X SF22 81X GT22

81X H0 81X K1C 81X K3 81X SK-0

81X SF1 81X SF1M1 81X SF1A --

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.
A-Plate B-Hub C-Hub B-Split Sprockets C-Split Sprockets Idler Sprockets Plastic Sprockets
81XA10 81XB10 81XC10 SPLIT-81XB10 SPLIT-81XC10 10-TOOTH 9-TOOTH
81XA11 81XB11 81XC11 SPLIT-81XB11 SPLIT-81XC11 11-TOOTH 10-TOOTH
81XA12 81XB12 81XC12 SPLIT-81XB12 SPLIT-81XC12 12-TOOTH 12-TOOTH
81XA13 81XB13 81XC13 SPLIT-81XB13 SPLIT-81XC13 13-TOOTH 13-TOOTH
81XA14 81XB14 81XC14 SPLIT-81XB14 SPLIT-81XC14 14-TOOTH 14-TOOTH
81XA15 81XB15 81XC15 SPLIT-81XB15 SPLIT-81XC15 15-TOOTH --
81XA16 81XB16 81XC16 SPLIT-81XB16 SPLIT-81XC16 16-TOOTH --
81XA17 81XB17 81XC17 SPLIT-81XB17 SPLIT-81XC17 17-TOOTH --
81XA18 81XB18 81XC18 SPLIT-81XB18 SPLIT-81XC18 18-TOOTH --
81XA19 81XB19 81XC19 SPLIT-81XB19 SPLIT-81XC19 19-TOOTH --
81XA20 81XB20 81XC20 SPLIT-81XB20 SPLIT-81XC20 20-TOOTH --
Note: Plastic and stainless steel 81X sprockets are also available upon request.

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