EMMAR ASA 40/2 roller chain
- Brand
- EMMAR
- Category
- Power transmission
- Subcategory
- Roller chains
- Size
- ASA 40
- Series
- ASA
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Description
EMMAR ASA 40/2 belongs to roller chain, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for ASA 40/2 and any equivalents.
When a single-strand chain of a given pitch no longer carries the load, the ASA 40/2 double-strand roller chain is a practical step up. It keeps the same 12.7 mm pitch, 7.95 mm roller diameter and 7.95 mm inner width as the single-strand version, but adds a second row of rollers to share the work. This chain follows the ANSI standard for roller chains and is part of the power transmission line we supply to maintenance and purchasing teams across the United States and Latin America.
Reading the code helps you select the right chain. ASA 40/2 tells you two things: the 40 refers to a half-inch pitch, which is 12.7 mm, and the /2 means two roller strands. The roller diameter and inner width are both 7.95 mm. Because the pitch stays the same, the sprockets you already use for a 40-pitch drive can often be reused, provided they are wide enough for two strands.
Double-strand construction is common in agricultural machinery, conveying equipment, machine tools and lifting systems where a single strand would be undersized. It also appears in gearboxes and transmission cases that need two strands to distribute the load, and in equipment where space is limited and the pitch cannot be increased. If you are upgrading from a single-strand chain, confirm that the space and supports can take the wider chain.
Installation and maintenance follow the same rules as any roller chain, with a few points to watch. Check that the sprockets match the 12.7 mm pitch and accept two strands. Alignment matters: misalignment speeds up wear on rollers and teeth. Keep lubrication adequate and tension correct to avoid skipping. These checks are what keep a double-strand drive running smoothly.
We supply the complete ASA series and can help you find the right chain for your application. Send the code ASA 40/2, or the code of the chain you are replacing, along with the number of sprocket teeth and the center distance. Our team replies promptly by WhatsApp or email, suggests equivalents and helps you choose. EMMAR is one of the brands we supply as part of our power transmission offering.
Dimensions
- Standard
- ASA / ANSI
- Rows
- Double
- Pitch
- 12.7mm
- Roller Ø
- 7.95mm
- Inner width
- 7.95mm
Frequently asked questions
- What does the designation ASA 40/2 mean?
- ASA 40/2 is a double-strand roller chain. The 40 indicates a half-inch pitch, which is 12.7 mm, and the /2 means it has two roller strands. It is chosen when a single-strand chain of the same pitch does not provide enough traction capacity.
- How does an ASA 40/2 differ from an ASA 40?
- The ASA 40 is single-strand and the ASA 40/2 is double-strand. Both share a 12.7 mm pitch and a 7.95 mm roller diameter, but the double-strand version has greater load capacity and needs wider sprockets.
- How can I request a quote for this chain?
- Send the code ASA 40/2 to MR Industrial Accessories via WhatsApp or email. If you need a different size, include the pitch, the number of strands and the number of sprocket teeth. Our team will reply promptly with a quote.