
DONGHUA ASA 120 roller chain
- Brand
- DONGHUA
- Category
- Power transmission
- Subcategory
- Roller chains
- Size
- ASA 120
- Series
- ASA
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Description
DONGHUA ASA 120 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 120 and any equivalents.
When you need a rugged roller chain for heavy-duty power transmission, the DONGHUA ASA 120 is a solid choice. It has a 38.1 mm pitch, 22.23 mm roller diameter, and 25.4 mm inside width. MR Industrial Accessories supplies this chain and can help you verify the right configuration for your drive.
The ASA 120 follows the American inch-pitch roller chain standard. The number 120 corresponds to the 38.1 mm pitch, 22.23 mm roller, and 25.4 mm inside width. Higher numbers indicate larger pitches and greater transmission capacity. This chain is available in single, double, or triple strand versions to match your load requirements.
Typical uses include chain drives on conveyors, elevators, mills, mixers, construction machinery, agricultural equipment, and process plant transmission systems. It provides positive drive without slippage and offers good wear and tensile resistance, making it suitable for synchronizing parallel shafts in demanding operations.
For proper installation, confirm that sprockets have the same pitch and are correctly aligned. Misalignment speeds up wear on both chain and sprocket teeth. Set tension with minimal sag—neither too tight nor too loose. Lubricate with oil suited to the speed and load. In dusty or dirty conditions, use appropriate lubrication and inspect for wear regularly.
To request a quote for an equivalent, provide the complete chain code, number of strands, and either the link count or total length. With those details, we can suggest an alternative from the same series or another brand. We can also advise on compatible sprockets and lubricants for your installation.
Send your ASA 120 chain inquiry by WhatsApp or email. Include the part number and the quantity you need, and our team will respond promptly with a quote. If you are unsure about the size, contact us and we will help you identify the correct chain.
Dimensions
- Standard
- ASA / ANSI
- Rows
- Single
- Pitch
- 38.1mm
- Roller Ø
- 22.23mm
- Inner width
- 25.4mm
Frequently asked questions
- What does ASA 120 mean?
- ASA designates inch-pitch roller chain. The number 120 indicates the size: 38.1 mm pitch, 22.23 mm roller diameter, and 25.4 mm inside width. It is a heavy-duty chain.
- Is DONGHUA a brand that MR supplies?
- Yes, DONGHUA is one of the brands we carry. You can ask us about the ASA 120 chain and we will advise you on the application.
- How do I request a quote?
- Message us on WhatsApp or email with the code ASA 120 and the quantity in meters or links. We will reply with the quote and options.

