How Drum Sprockets Extend Life of Drag Chain Conveyors

Drum sprockets

The right sprocket assembly allows conveyor systems to run smoothly without damaging equipment. If your sprockets are showing signs of wear – including chipped or broken teeth – it could be a sign that you need a more robust sprocket solution.Industrial drag chain conveyors, such as those used in the paper and pulp, sawmill and metal recycling industries, often require a special type of sprocket engineered for heavy loads – the drum sprocket.


Drum sprockets have thick teeth, plates and hubs designed to support drag chains carrying heavy bulk materials. Common applications for drum sprockets include:

  • Drag conveyers that carry logs to a debarker
  • Waste conveyers that transport bark, edging and trimmings out of the plant
  • Woodchip or sawdust conveyers that carry materials through pulp and paper mills
  • Metal recycling conveyers that transfer large scrap metal (such as crushed cars) to shredders

An important feature of the drum sprocket is its wide surface area, which helps reduce contact pressure between the sprocket and the chain. The result? Extended chain wear life.


Customized to meet your needs

A plate style drum sprocket

A-Plate Style

Full-Face Style Drum Sprocket

Full-Face Style

Tsubaki’s Drum Sprockets are available in multiple styles, including full face, A-plate and traction wheels, to meet a variety of application requirements.

The full-face style offers the most surface area, which makes it the standard choice for most industrial applications. Tsubaki also offers a variety of hub styles, including finished bores, bushed-style and keyless locking.


To reduce installation time and costs associated with downtime, drum sprockets can come fully assembled with a shaft, sprockets, and pillow block bearings already configured for quick and easy mounting.

Pillow Block Bearing OrangePillow Block Bearing

Tsubaki Shaft AssembliesShaft Assemblies

Tsubaki WeldsSuperior Welds

Tsubaki’s quality of manufacturing is what sets us apart from the competition and routed from a rich history of experience. All of Tsubaki’s drum sprockets are manufactured from top-grade, heat treated steel to withstand heavy shock loading, resist abrasion, and provide long service life. Thickness minimums of each component start at ½” and go as high as 1.5” dependent on application and overall width of the drum. Tsubaki has the ability to source a variety of plate, rolled cans and pipe thicknesses based on the customer’s needs or application. Only metal which can maintain proper welds and stresses of application torque are utilized in manufacturing and will never include inferior spot or one-sided tooth welds. To learn more about Tsubaki drum sprocket assemblies and select the right configurations for your facility, contact us today.

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