Distributor

Transmission Chain

Bearings Specialist Co., Ltd. is an authorized distributor of Renold, Fenner, and AYA, providing comprehensive power transmission solutions for industries throughout Thailand.

Our product portfolio covers a complete range of transmission chains, sprockets, and chain tensioners, from standard roller chains to specialized solutions including stainless steel, corrosion-resistant, and maintenance-free chains. These products are designed to support a wide range of applications across manufacturing, food processing, and general industrial sectors.

As an authorized distributor, Bearings Specialist is committed to supplying genuine products sourced directly from our brand partners, ensuring product authenticity, consistent quality, and dependable performance backed by established engineering standards.

With the expertise of globally recognized brands and our commitment to professional service, Bearings Specialist delivers reliable chain and power transmission solutions designed to support operational efficiency, equipment reliability, and long-term performance.

Why Transmission Chain Matters

Transmission chain is a positive-drive power transmission method that provides high load capacity and slip-free operation, making it suitable for demanding industrial applications. Compared with belts, chains offer reliable power transmission where consistent performance and durability are required.

Selecting the right chain type, pitch, and connecting link, together with a correctly matched sprocket, directly affects drive efficiency, operating noise, and service life.

Using mismatched or low-quality components can result in premature wear, chain elongation, and unplanned downtime, leading to increased maintenance costs and reduced operational efficiency.

Our Transmission Chain Range

Standard Roller Chain

Standard roller chains are one of the most widely used types of transmission chains, consisting of rollers, bushings, pins, and link plates designed to engage precisely with sprocket teeth for efficient and reliable power transmission with minimal slippage.

Available in single, duplex, and triplex strand configurations, standard roller chains are suitable for a wide range of industrial applications, including general manufacturing, packaging, material handling, and processing machinery. They provide a practical and cost-effective solution where dependable power transmission and consistent operating performance are required.

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Hollow Pin Chain

Hollow pin chains feature hollow tubular pins instead of solid pins, allowing accessories such as attachments, guide rollers, and extended pins to be mounted directly through the chain.

This design makes hollow pin chains particularly suitable for conveying and indexing applications, where the chain is required not only to transmit power but also to carry, support, or accurately position materials throughout the production process.

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Heavy Performance Chain

Heavy performance chains are designed with thicker link plates, larger-diameter pins, and high-strength materials to withstand higher loads, shock, and impact than standard roller chains.

They are well suited for heavy-duty machinery, construction equipment, and power transmission systems operating under sustained high-torque conditions, where standard chains may experience premature wear or failure due to demanding operating loads.

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Stainless Steel Chain

Stainless steel chains are manufactured using corrosion-resistant stainless steel components, making them suitable for demanding environments where exposure to moisture, chemicals, or frequent cleaning is expected.

They are commonly used in washdown applications, food and beverage processing, and other industries requiring high levels of cleanliness and corrosion resistance. Stainless steel chains provide the reliable power transmission performance of roller chains while offering enhanced resistance to rust, corrosion, and contamination.

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Maintenance-Free Chain

Maintenance-free chains are designed with pre-lubricated bushings and sealed pin joints that retain lubrication within the chain, reducing or eliminating the need for regular re-lubrication.

These chains help reduce maintenance requirements and operating costs while minimizing premature wear. They are particularly suitable for hard-to-access or difficult-to-service drive locations, helping maintain reliable and efficient power transmission with less routine maintenance.

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Corrosion-Resistant Chain

Corrosion-resistant chains are manufactured with specialized protective coatings or plating, such as nickel or zinc, to help protect against rust and chemical exposure in humid, outdoor, and corrosive processing environments.

They provide a cost-effective alternative to full stainless steel chains, while offering enhanced corrosion resistance and extended service life in demanding operating conditions.

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Connecting Link Types

Every roller chain requires a connecting link to join the chain ends, complete the loop, and ensure proper operation within the power transmission system.

The type of connecting link directly affects the ease of chain installation, removal, replacement, and maintenance. Selecting the correct connecting link for the chain type and size helps ensure efficient installation and reliable maintenance of the power transmission system.

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Rivet Type Connecting Link

Rivet type connecting links are secured by riveting (peening) the pin ends flat after assembly, creating a permanent and high-strength connection that closely matches the strength and profile of the chain’s standard links.

This type of connecting link provides maximum joint strength and reliable performance, making it well suited for demanding power transmission applications where a strong, secure connection and a smooth, uninterrupted chain profile are required.

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Cotter Pin Type Connecting Link

Cotter pin type connecting links use a split cotter pin through the end of the connecting pin to secure the link plate in place, rather than using a riveted pin head.

This design allows the chain to be easily disconnected and reconnected using standard hand tools, making it a practical choice for applications where the chain requires regular removal for maintenance, inspection, or length adjustment.

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Spring Clip Type Connecting Link

Spring clip type connecting links use a removable spring-steel clip to secure the link plate over the pin ends, allowing the chain to be connected and disconnected quickly by hand without the need for special tools.

This design provides convenient access for installation, removal, and routine maintenance, making it particularly suitable for light-duty chain applications or systems where frequent and quick maintenance access is required

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Sprockets

Sprockets are toothed wheels designed to engage with chain links and transmit power through a chain drive system. Selecting the correct sprocket to match the chain pitch, strand configuration, and tooth profile ensures smooth chain engagement, minimizes wear, and helps extend the overall service life of the chain drive.

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Chain Tensioners

Chain tensioners are designed to maintain the correct chain tension through automatic or manual adjustment, compensating for chain wear and elongation that occur over time. Proper tension helps prevent chain slack, which can lead to chain skipping, excessive noise, and premature sprocket wear.

Maintaining proper chain tension helps extend the service life of both the chain and sprocket, while reducing the need for frequent manual adjustments. This supports smoother, more efficient, and more reliable operation of the power transmission system.

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Our Authorized Brands

Renold

Renold is a long-established British manufacturer of precision transmission chains, recognized worldwide for its engineering expertise and more than a century of industry experience.

Renold chains are widely used across heavy industry, food processing, and general manufacturing, providing reliable performance for applications where consistent quality, durability, and long service life are essential.

Fenner

Fenner is a well-established manufacturer of power transmission products, recognized for its durable chains and sprockets used across manufacturing, agriculture, mining, and general industrial applications worldwide.

Fenner products are engineered to withstand demanding operating conditions while delivering consistent performance, reliability, and long service life across a wide range of industrial applications.

AYA

AYA is a specialist manufacturer of transmission chains, offering a broad range of standard and specialty chains for a variety of industrial applications.

We stock AYA transmission chains as a reliable and cost-effective option, providing customers with a practical alternative alongside our premium brand partners to meet different application requirements and budgets.

Why Choose Bearings Specialist

Authorized distributor of Renold, Fenner, and AYA — genuine products, not imitations
Wide inventory across standard and specialty transmission chain types, plus matching sprockets and tensioners
Technical guidance to help you select the correct chain, connecting link, and sprocket combination
Reliable delivery across Thailand
Support for heavy industrial, food-grade, and corrosive-environment applications

Tel. 02-840-0065

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