DONGHUA ASA 100/3 roller chain
- Brand
- DONGHUA
- Category
- Power transmission
- Subcategory
- Roller chains
- Size
- ASA 100
- Series
- ASA
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Description
DONGHUA ASA 100/3 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 100/3 and any equivalents.
When you need to transmit high torque through a single chain line, the DONGHUA ASA 100/3 roller chain is a solid choice. It has a 31.75 mm (1 1/4") pitch, a 19.05 mm roller diameter, and a 19.05 mm inner width. This triple-strand chain is built for demanding drives in conveyors, mills, elevators, and process machinery. MR supplies DONGHUA and can help you match the chain to your sprockets.
The part number ASA 100/3 tells you most of what you need. The 100 comes from the pitch measured in eighths of an inch: 100 divided by 8 gives 12.5 eighths, which equals 1 1/4". The /3 means three rows of rollers running side by side. That construction lets you pull heavier loads than a single- or double-strand chain of the same pitch, provided you have the room and the right sprockets.
You will find this chain on high-capacity drives: belt and chain conveyors, bucket elevators, mills, mixers, woodworking equipment, and other process lines where torque is high. It is also a common upgrade when a single- or double-strand chain is no longer enough but you want to keep the same sprocket diameters. Just confirm that the hub width and housing can accommodate the extra width.
Installation starts with the sprockets. They must have a 31.75 mm pitch and the tooth count that gives you the ratio you need. Because this is a triple-strand chain, you need triple-strand sprockets with a compatible hub width. After mounting, check shaft alignment, set the correct tension, and make sure lubrication is right. A chain that is too loose, too tight, or running dry will stretch and wear out early. If space is tight, a smaller-pitch chain or a belt drive may be a better fit.
If you need a specific length, or want to compare an equivalent from another brand, just send the part number ASA 100/3 along with the number of pitches or the total length in meters. We can also check that it will work with the sprockets you already have. MR carries DONGHUA and also manufactures split plummer block housings, ANSI roller chains, and sheaves in-house for projects that call for it.
Dimensions
- Standard
- ASA / ANSI
- Rows
- Triple
- Pitch
- 31.75mm
- Roller Ø
- 19.05mm
- Inner width
- 19.05mm
Frequently asked questions
- What does the /3 mean in ASA 100/3?
- The /3 indicates a triple-strand chain: three rows of rollers side by side. This increases the pulling capacity compared to a single- or double-strand chain of the same pitch. You will need triple-strand sprockets with the correct hub width.
- Can I use this chain to replace a single-strand chain?
- Not without changes. The triple-strand chain is wider, so you need triple-strand sprockets and enough axial space. It is best to review the whole drive: sprockets, shafts, bearings, and housing.
- How do I get a quote for the ASA 100/3 chain?
- Send the part number ASA 100/3 on WhatsApp or by email, and include the number of pitches or the total length you need. If you have a drawing or photo of the drive, that helps us verify compatibility with your sprockets.