Description
Product Overview
The 5‑piece Roller Chain Offset Half Link #40 by FOCMKEAS is engineered for demanding industrial applications. Each link is forged from high‑grade carbon steel and treated with an electroless blackening process that provides superior corrosion resistance and a rugged finish. The 1/2‑inch pitch matches standard ANSI and ISO chain sizes, making it a versatile replacement for a wide range of power‑transmission equipment. The offset design subtly shifts the pin position, allowing smoother chain engagement and reducing the initial elongation that can lead to premature wear. Packaged in a compact box measuring 2.28 x 1.61 x 0.83 inches and weighing just 1.41 ounces, the set includes five identical half‑links, ensuring you have enough spares for routine maintenance or emergency repairs.
![[Product front view showing all components]](https://www.sagasigns.store/wp-content/uploads/2026/07/e21853f04bd245a2b80114e5d9f9d058.jpg)
Usage
These offset half‑links are ideal for a variety of industrial settings, including conveyor systems, material handling equipment, agricultural machinery, and manufacturing lines that rely on robust chain drives. The design is particularly beneficial in applications where chain tension must be fine‑tuned to avoid misalignment, such as in high‑speed gearboxes or heavy‑load lift mechanisms. Installation is straightforward: using a pair of circlip pliers, remove the existing link, insert the new offset half‑link, and snap the spring clip back into place. Regular lubrication and cleaning of the chain will further extend the lifespan of both the chain and the offset links, ensuring consistent performance even under harsh operating conditions.
Why Choose Us
FOCMKEAS stands out for its commitment to quality and precision engineering. Every offset half‑link undergoes rigorous testing to meet industry standards for tensile strength, wear resistance, and dimensional accuracy. The carbon‑steel construction, combined with the blackening finish, offers a balance of strength and durability that resists rust and abrasion, even in environments with exposure to chemicals or moisture. Our products are backed by a responsive customer support team that provides technical assistance, replacement parts, and guidance on proper chain maintenance. With a 4.6‑star rating from over 70 verified buyers, our customers consistently praise the reliability and ease of installation of these links.
Key Features
- Durable carbon‑steel construction with electroless blackening for long‑term corrosion protection.
- Offset design improves chain alignment, reducing wear and extending overall chain life.
- Compatible with 1/2‑inch pitch chains, fitting both ANSI #40 and ISO 08A specifications.
- Easy installation using standard circlip pliers; no special tools required.
- Supported by FOCMKEAS customer service with fast response and technical guidance.
FAQ
What chain sizes are compatible with this offset half‑link?
The offset half‑link is sized for a 1/2‑inch pitch, which corresponds to ANSI #40 (also known as ISO 08A). It works with both standard and offset chain configurations, making it suitable for a broad range of industrial chain drives.
How do I install the offset half‑link correctly?
First, use a pair of circlip pliers to compress the spring clip on the existing link and remove it from the chain. Insert the new offset half‑link by aligning the pin with the chain’s inner plates, then release the spring clip so it snaps back into place. Ensure the link sits flush with adjacent links and re‑apply chain lubricant for optimal performance.
Can these links be used in high‑temperature environments?
Yes. The carbon‑steel material retains its strength at elevated temperatures, and the blackening coating provides additional protection against oxidation. However, for extreme heat applications exceeding 200 °C (392 °F), it is advisable to verify compatibility with the specific equipment manufacturer’s guidelines.
What maintenance practices will extend the life of the chain and offset links?
Regular cleaning to remove debris, followed by proper lubrication with a chain‑compatible oil or grease, will minimize wear. Inspect the chain and links periodically for signs of stretching or damage, and replace any compromised components promptly. Maintaining correct tension and avoiding over‑loading will also help preserve the integrity of the offset half‑links.
Is there a warranty or return policy for these products?
FOCMKEAS offers a one‑year limited warranty covering manufacturing defects. If you receive a defective part, contact our support team with the order details, and we will arrange a replacement or refund in accordance with our return policy.




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