Keep Products Moving Smoothly Around Curves Without Compromising Conveyor Performance

Every metre of factory floor space matters. As manufacturers look for smarter ways to increase production without expanding their footprint, conveyor systems are being designed with tighter layouts, sweeping bends & more complex product flow. While these layouts improve efficiency, they also introduce a challenge that standard roller chain was never intended to solve.

Finer Side Bow Chain (KCM) has been developed specifically for conveyor systems that need to navigate curves while maintaining smooth, controlled movement. Its increased lateral flexibility allows the chain to follow curved conveyor paths with less binding, lower side loading & more consistent tracking, helping reduce wear across the complete conveyor system.

Whether you're designing a new conveyor, upgrading an ageing production line or replacing worn components during scheduled maintenance, selecting a chain engineered for curved conveying can help improve reliability, protect products & reduce long-term maintenance costs.

If you're servicing the complete conveyor drive, it's also worth checking your ASA Sprockets & Roller Chain Accessories to ensure every component continues working together as a dependable system.

Why Conveyor Curves Create Different Engineering Challenges?

Straight conveyors are relatively forgiving. Once products begin travelling through bends, however, the forces acting on the chain change significantly. Side thrust increases, guide rails experience greater contact, wear strips work harder & the chain must articulate laterally while still maintaining accurate engagement with the sprocket teeth.

These conditions explain why many premature conveyor failures aren't caused by poor-quality chain—they're caused by using the wrong type of chain for the application.

Side Bow Chain has been engineered to accommodate controlled sideways articulation without sacrificing the strength, pitch accuracy & reliable power transmission expected from an ANSI conveyor chain.

For maintenance managers, that translates into fewer product interruptions, smoother conveyor tracking & lower ongoing maintenance demands across curved conveyor sections.

What Is Side Bow Chain?

Although Side Bow Chain shares much of its construction with conventional ANSI roller chain, its behaviour inside a conveyor system is fundamentally different.

Rather than resisting lateral movement, the chain has been engineered to flex sideways within controlled limits, allowing it to negotiate conveyor curves while maintaining smooth articulation between each link.

That additional flexibility makes it particularly valuable wherever production lines include:

► Curved conveyors
► Spiral conveyor sections
► Product accumulation systems
► Directional changes
► Conveyor merges
► Conveyor diverters
► Automated packaging lines
► Continuous production systems

Internally, every chain consists of precision-engineered components working together to support reliable conveying performance.

These include:

► Hardened pins
► Precision bushes
► Heat-treated rollers
► Inner link plates
► Outer side plates
► Connecting links
► Offset links where required
► Controlled bearing clearances

As these components articulate around both straight & curved conveyor sections, the chain maintains accurate pitch while allowing the lateral movement needed for smooth curve negotiation.

Can Side Bow Chain still be used on straight conveyors?

Yes.

Many conveyor systems combine straight & curved sections within the same production line. Side Bow Chain operates effectively across both, allowing products to move seamlessly without requiring multiple chain types.

How Side Bow Chain Works?

Smooth conveyor performance depends on more than simply moving products from one location to another. Every curve, transfer point & change in direction introduces additional forces that influence chain tracking, guide rail wear & overall conveyor efficiency.

Side Bow Chain addresses these challenges by combining conventional roller chain power transmission with controlled lateral articulation.

As the drive sprocket rotates, the rollers engage the sprocket teeth while the pins rotate within the bushes, transmitting tensile loads through the side plates exactly as a standard ANSI roller chain would.

The difference appears when the chain reaches a bend.

Instead of fighting the conveyor radius, each chain joint pivots sideways within its designed operating limits, allowing the chain to follow curved guide rails with considerably less friction than conventional roller chain.

This controlled articulation helps reduce:

► Side loading
► Guide rail wear
► Conveyor vibration
► Product instability
► Roller scuffing
► Chain binding
► Uneven wear patterns
► Maintenance requirements

Will Side Bow Chain eliminate conveyor wear?

No.

Even a correctly selected chain requires appropriate lubrication, correct guide rail adjustment, accurate sprocket alignment & routine inspection. Side Bow Chain reduces many of the stresses associated with curved conveying, but overall conveyor reliability still depends on maintaining the complete drive system.

Why Engineers Specify Side Bow Chain?

The decision to use Side Bow Chain usually begins long before the conveyor is installed. During the design stage, engineers are often balancing competing priorities such as available floor space, production capacity, maintenance access & future expansion.

Choosing a chain capable of handling curves gives them greater freedom to design efficient conveyor layouts without introducing unnecessary transfer points or complex mechanical alternatives.

Finer Side Bow Chain (KCM) delivers practical advantages including:

► Precision Japanese manufacturing.
► Increased lateral flexibility.
► ANSI dimensional compatibility.
► Compatible with standard sprockets.
► Reliable tracking through curved conveyors.
► Reduced side loading.
► Smoother product flow.
► Lower wear across conveyor curves.
► Suitable for OEM equipment & replacement installations.
► Available in multiple ANSI chain sizes.

An often-overlooked benefit is product stability. Every transfer point within a conveyor system introduces an opportunity for cartons, bottles, containers or packaged products to shift, tip or jam. By reducing the number of transfers required, Side Bow Chain can help improve product flow while simplifying the overall conveyor layout.

Side Bow Chain vs Standard Roller Chain

Selecting conveyor chain isn't simply a matter of matching dimensions. The way a conveyor operates has a direct influence on the type of chain it should use. While Side Bow Chain & standard roller chain may appear similar, they're engineered for very different operating conditions.

A conventional ANSI roller chain excels where power is transmitted in a straight line with minimal lateral movement. Once a conveyor incorporates sweeping bends, product accumulation zones or directional changes, those same characteristics can become a disadvantage. The chain begins resisting sideways movement, increasing friction against guide rails & creating unnecessary stress throughout the conveyor.

Side Bow Chain has been developed specifically to overcome these challenges.

If your conveyor includes curves, selecting a chain designed for lateral movement usually delivers lower maintenance costs & more consistent product flow over the long term.

Can standard roller chain be used around curves?

It may negotiate very gentle curves in some applications, but it isn't engineered for continuous curved conveying. Using the correct Side Bow Chain generally results in smoother tracking, reduced wear & longer component life.

Where Side Bow Chain Delivers the Greatest Value?

Curved conveyor systems appear in far more industries than many people realise. Anywhere products need to travel efficiently around machinery, inspection stations or packaging equipment without repeated transfers, Side Bow Chain provides an effective conveying solution.

Food & Beverage Processing

Packaging facilities often rely on curved conveyors to move cartons, bottles & packaged products between filling, inspection, labelling & palletising stations. Side Bow Chain helps maintain consistent product spacing while reducing unnecessary vibration as products negotiate bends.

Beverage & Bottling Plants

High-speed production lines demand reliable conveyor tracking. Side Bow Chain supports continuous bottle movement through curved sections where smooth product handling is essential for maintaining throughput.

Packaging & Cartoning

Packaging machinery frequently combines straight conveyors with multiple changes in direction. Curved conveyor layouts reduce the need for additional transfer points while allowing production lines to fit within available factory space.

Logistics & Distribution

Distribution centres commonly use curved conveyors to merge, divert & redirect cartons between sorting systems. Smooth chain articulation helps maintain efficient product flow while reducing package instability.

Textile Manufacturing

Fabric, garments & finished textile products often travel considerable distances throughout production. Curved conveyors fitted with Side Bow Chain simplify plant layouts while supporting controlled product movement.

Industrial Laundries

Continuous garment handling systems frequently incorporate long conveyor circuits with numerous bends. Side Bow Chain assists with maintaining smooth movement while reducing wear across guide rails & conveyor tracks.

General Manufacturing

Many production facilities continue expanding within existing buildings rather than constructing larger factories. Curved conveyor layouts allow engineers to maximise available floor space while improving workflow between manufacturing processes.

One practical observation from conveyor upgrades is that reducing transfer points often improves reliability just as much as installing higher-quality components. Every transfer introduces another opportunity for products to catch, tip, misalign or become damaged. Designing smoother conveyor paths helps minimise these risks.

Buying Considerations

Selecting Side Bow Chain involves more than confirming chain pitch. Understanding how the conveyor operates today—and how it may evolve in the future—helps ensure the chain continues delivering reliable performance throughout its service life.

Before specifying a replacement, consider:

► What is the minimum conveyor radius?
► How many curved sections are included?
► What products are being conveyed?
► Is continuous production expected?
► Are products lightweight or heavy?
► Will conveyors operate in dusty or wet environments?
► Are guide rails in good condition?
► Have sprockets been inspected for wear?
► Is chain lubrication easily accessible?
► Could future production increases change conveyor loading?

Answering these questions helps determine whether Side Bow Chain is the most suitable solution for your conveyor layout.

Product Selection Guide

Every conveyor application places different demands on the chain. Selecting the correct Side Bow Chain helps improve tracking accuracy, reduce wear & support reliable long-term operation.

Confirm the Correct Chain Size

Always verify:

► ANSI chain designation
► Chain pitch
► Roller diameter
► Width between inner plates
► Pin diameter
► Overall chain width

Correct sizing ensures proper sprocket engagement while maintaining smooth articulation throughout the conveyor.

Understand Conveyor Radius

One of the most important design considerations is the radius of every curved section.

Tighter bends generally require greater attention to:

► Guide rail alignment
► Chain tracking
► Wear strip condition
► Side thrust
► Lubrication
► Conveyor speed

Poorly designed curves can shorten chain life regardless of chain quality.

Evaluate Product Characteristics

The products being conveyed also influence chain selection.

Consider:

► Product weight
► Package stability
► Centre of gravity
► Product spacing
► Conveyor speed
► Accumulation requirements

These factors affect how the chain performs through bends & transitions.

How tight can a Side Bow Chain curve be?

The minimum operating radius depends on the specific chain size, conveyor design & manufacturer's recommendations. Selecting a radius that's too tight increases side loading & accelerates wear throughout the conveyor system.

Compatibility Guide

One reason Side Bow Chain remains widely specified is its compatibility with many conventional conveyor components.

It commonly operates with:

► ANSI sprockets
► Drive shafts
► Idler shafts
► Guide rails
► Wear strips
► Conveyor frames
► Chain tensioners
► Bearings
► Return tracks
► Conveyor supports

Where severe corrosion, chemical exposure or unusual operating conditions exist, alternative chain materials or specialised conveyor designs may be more appropriate.

Standards & Specifications

Finer Side Bow Chain (KCM) is manufactured to recognised ANSI dimensional standards, helping maintain compatibility with correctly matched sprockets & conveyor equipment.

Typical specifications include:

► ANSI chain size
► Chain pitch
► Roller diameter
► Plate height
► Pin diameter
► Tensile strength
► Average working load|
► Recommended connecting links

Confirming these specifications before installation helps reduce fitment issues while supporting reliable conveyor operation.

Common Mistakes That Shorten Conveyor Chain Life

Even a premium conveyor chain won't perform as expected if it's installed into a poorly maintained system. In many cases, premature wear isn't caused by the chain itself but by small installation or maintenance issues that gradually place additional stress on every moving component.

Avoid these common mistakes:

► Using standard roller chain in conveyors with continuous curves.
► Reusing heavily worn sprockets during chain replacement.
► Running excessive chain tension to compensate for wear.
► Ignoring guide rail wear.
► Allowing wear strips to become uneven.
► Operating with poor sprocket alignment.
► Delaying lubrication until the chain becomes noisy.
► Installing a chain that's unsuitable for the conveyor radius.
► Failing to inspect return tracks during scheduled maintenance.
► Replacing the chain without investigating the cause of the original wear.

One recurring issue seen during conveyor servicing is replacing the chain while leaving worn guide rails untouched. The new chain often follows the same worn path, accelerating side wear & reducing its expected service life. Inspecting the complete conveyor path rather than focusing solely on the chain delivers far better long-term reliability.

Maintenance Guide

Consistent maintenance plays a much greater role in conveyor reliability than many operators realise. While Side Bow Chain has been engineered to negotiate curved conveyor layouts, it still depends on proper lubrication, accurate alignment & routine inspection to perform at its best.

Developing a preventative maintenance program helps reduce unexpected downtime while extending the service life of the chain, sprockets, guide rails & supporting components.

Lubrication

Every chain joint contains moving surfaces that rely on lubrication to minimise friction between the pins, bushes & rollers.

Apply lubricant appropriate for the operating environment while paying particular attention to:

► Pin & bush articulation
► Roller rotation
► Conveyor speed
► Operating temperature
► Moisture exposure
► Dust contamination

Lubricating immediately after operation often allows the lubricant to penetrate more effectively into the bearing surfaces where most wear occurs.

Does Side Bow Chain require more lubrication than standard roller chain?

Not necessarily. Lubrication intervals are generally determined by operating conditions rather than chain type. However, conveyors operating through long curved sections should be inspected regularly to ensure lubrication remains effective throughout the chain.

Routine Inspections

Routine inspections should become part of every planned shutdown.

Inspect for:

► Chain elongation
► Side plate wear
► Roller wear
► Pin wear
► Uneven articulation
► Guide rail condition
► Wear strip deterioration
► Conveyor tracking
► Chain tension
► Sprocket tooth wear

Monitoring these components together provides a far clearer picture of conveyor health than inspecting the chain alone.

Guide Rails & Wear Strips

Guide rails & wear strips play a critical role in curved conveyor performance.

As products move around bends, these components help support the chain while controlling lateral movement. Excessive wear can increase friction, affect chain tracking & place additional stress on the rollers & side plates.

Replacing worn wear strips before they become severely damaged often extends the life of the entire conveyor system.

Signs Your Side Bow Chain Needs Replacing

Conveyor chains rarely fail without warning. Performance usually declines gradually, providing several opportunities to schedule maintenance before production is affected.

Common replacement indicators include:

► Excessive chain elongation.
► Poor conveyor tracking.
► Increasing vibration through curved sections.
► Noticeable side plate wear.
► Hooked sprocket teeth.
► Chain binding around bends.
► Roller damage.
► Frequent tension adjustments.
► Irregular product movement.
► Excessive operating noise.

A useful maintenance observation is that tracking problems often appear before significant chain wear becomes obvious. If products begin drifting through curved sections or the chain consistently contacts one guide rail more heavily than the other, inspecting alignment early can prevent much larger maintenance issues later.

Expert Tips

Small improvements made during routine servicing often deliver the greatest return over the life of a conveyor.

Consider these practical recommendations:

► Confirm conveyor radius before installing replacement chain.
► Replace worn sprockets when chain elongation exceeds recommended limits.
► Keep guide rails clean to minimise unnecessary friction.
► Inspect wear strips during every scheduled shutdown.
► Maintain correct chain tension without overtightening.
► Lubricate consistently rather than reactively.
► Monitor conveyor tracking after every maintenance shutdown.
► Record wear patterns to help predict future replacement intervals.

Keeping detailed maintenance records allows recurring issues to be identified before they develop into repeated equipment failures.

For additional maintenance planning strategies, read our Spring Jobsite Prep guide, which explores practical preventative maintenance techniques that help keep equipment operating reliably throughout busy production periods.

Workshop Insight

The smoothest conveyors are rarely those fitted with the most expensive components—they're the ones that have been designed, aligned & maintained as complete systems.

During conveyor refurbishments, maintenance teams frequently discover that excessive chain wear originated from worn guide rails, damaged wear strips or poorly aligned sprockets rather than the chain itself. Installing a premium replacement chain without correcting these issues often results in the same problems returning long before the new chain reaches its expected service life.

A more effective approach is to assess the entire conveyor path during planned shutdowns. Checking conveyor frames, return tracks, bearings, shaft alignment, guide rail condition & sprocket wear together provides a more accurate picture of overall system health & helps reduce repeat maintenance.

If you're planning a broader conveyor overhaul, our Engineering & Industrial Support Services team can assist with sourcing compatible industrial components to support your maintenance schedule.