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DHA Roller Chain
DHA series roller chains are manufactured to ANSI B29.1 specifications, but have a special chrome carbide pin. This chain is best in applications that are exposed to dust and where proper lubrication is extremely difficult to achieve.DHA roller Chain Structure
The structure of DHA refers to a hard layer that is formed on the surface of a pin. This layer has an extremely hard chromium carbide surface, as illustrated in the illustration above. Excellent performance can be expected from DHA roller chains even in adverse conditions, including the presence of abrasive contaminants. Additionally, DHA series roller chains offer great anti-corrosive properties for the pins. For more information or to get a quote, please contact our sales team at
DHA Wear Resistance Comparison
When needing connecting links and offset links for DHA chain, you can use a standard Premier Series link. This is because the roller chain as a whole has many links, the number of connecting links and offset links is often 1 or 2, so their influence on the wear of the entire chain is small.
Frequently Asked Questions
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If your order is less than $300, no problem! Please give us a call at 407-347-3519 or email Sales@usarollerchain.com, and we will be happy to assist you!
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USA Roller Chain utilizes an extensive network of vendors and warehouses to ensure you get your items quickly! Our primary roller chain warehouse is located in Clermont, FL, but we have warehouses located all across the United States. Your order will be shipped from the closest warehouse to you that has your requested product in stock. This speeds up transit times and saves you money on shipping! If you have any questions about where an item will ship from, please CONTACT US
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In-stock items are typically shipped out in 1-3 business days.Made-to-order item lead times vary from 1-2 days up to 14-20+ weeks, depending on the product. If you need your items urgently, please let us know, and we will do our best to meet your required delivery date! If you have any questions, please CONTACT US
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If you are having an issue with your order, please CONTACT US as soon as possible so we can resolve it for you.
Most in-stock items can be returned within 30 days of the shipment date. MTO or Custom orders are not eligible for a return or refund. For a detailed explanation of our return policies, please click here.
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Absolutely! We may be called "USA Roller Chain", but we ship worldwide! Please CONTACT US for Export/International quotes or orders.