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Single strand steel roller chain with pins and plates · DONGHUA ASA 100/H
Roller chain DONGHUA ASA 100/H

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Roller chain DONGHUA ASA 100/H

Manufacturer Part Number
ASA 100/H
Brand
DONGHUAOfficial brand
Category
Power transmission
Subcategory
Roller chains
Series
ASA

DONGHUA

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Description

DONGHUA ASA 100/H is a roller chain reference, within Power transmission. Request a quote for ASA 100/H via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The ASA 100/H chain is a roller chain with 31.75 mm (1 1/4") pitch, 19.05 mm roller diameter and 19.05 mm inner width. It is used in power transmissions where high loads and moderate speeds must be withstood, such as in agricultural machinery, conveyors and industrial equipment. DONGHUA is an official brand carried by MR, with technical support to select the right chain for your application.

This item is a roller chain from the ASA series, designation ASA 100/H. Its main attributes are: 31.75 mm pitch, 19.05 mm roller diameter and 19.05 mm inner width. The "H" designation indicates a reinforced construction, with thicker plates than the standard version, giving it greater tensile and fatigue strength. It is manufactured under ASA/ANSI standard, which guarantees dimensional interchangeability with equivalent chains from other manufacturers that follow the same standard.

Typical applications of the ASA 100/H include chain drives in agricultural machinery (seed drills, combine harvesters), drag conveyors, bucket elevators, mixers and continuous process equipment. It is also used in the woodworking and cement industries and in material handling systems where a robust and durable chain is required. Its 31.75 mm pitch makes it suitable for transmitting medium to high power at moderate linear speeds.

To correctly install an ASA 100/H chain, verify that the sprockets have the right pitch and number of teeth, and that they are aligned. Tension must be correct: neither too loose (it jumps) nor too tight (it wears bearings and bushings). Lubricate according to the operating conditions and check wear periodically. If you need to replace an existing chain, compare the pitch, inner width and roller diameter with the values of the original chain.

If you cannot find the exact size, we can offer you an equivalent chain or a neighboring size within the ASA series. To do so, send us the complete part number, the current brand and the dimensions shown on the nameplate or in the equipment manual. We can also advise you on lubrication and maintenance to extend the service life of the drive. At MR Accesorios Industriales we have more than 80 years of experience in power transmission.

To request a quote for the DONGHUA ASA 100/H chain, send us the part number on WhatsApp. If you need several units, chains with a different pitch or accessories such as connecting links, we can quote those as well. Our technical team responds with the information you need so you can order with confidence.

Dimensions

Standard
ASA / ANSI
Rows
Single
Series
Heavy (H)
Pitch
31.75mm
Roller Ø
19.05mm
Inner width
19.05mm

Frequently Asked Questions

What does the "H" mean in the ASA 100/H chain?
The letter H indicates a reinforced construction: the plates are thicker than in the standard version, which increases tensile strength and service life in demanding applications. It is important to verify that the sprockets are compatible with this type of chain.
How do I know if this chain replaces the one I have installed?
Compare the pitch (31.75 mm), roller diameter (19.05 mm) and inner width (19.05 mm) with those of your current chain. If they match, it is compatible. If you have doubts, send us a photo or the old part number on WhatsApp and we will help you confirm it.
What lubrication does an ASA 100/H chain need?
It depends on speed and load. In general, medium-viscosity oil applied by drip or immersion is recommended. For high speeds, jet lubrication. Ask us about the right lubricant for your equipment and operating conditions.
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