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Roller chain DONGHUA ASA 40
- Manufacturer Part Number
- ASA 40
- Brand
- DONGHUAOfficial brand
- Category
- Power transmission
- Subcategory
- Roller chains
- Series
- ASA
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Description
DONGHUA ASA 40 is a roller chain reference, within Power transmission. Request a quote for ASA 40 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The ASA 40 is one of the most widely used roller chains in medium-power industrial transmissions: 12.7 mm (half-inch) pitch, with 7.95 mm roller and inner width, according to the DONGHUA listing we have loaded.
With these dimensions, the ASA 40 transmits power between 40-pitch sprockets in conveyors, gearmotors, mixers and agricultural machinery. It is an intermediate pitch: lighter than the ASA 50 or the ASA 60 for lower loads, and stronger than the ASA 35 when the power to be transmitted increases.
It is available in single, double or triple —two or three rows of rollers in parallel with the same pitch and pin— to increase transmission capacity without changing the base sprocket, provided the sprocket is prepared for the number of rows you need.
When ordering, in addition to the pitch, confirm how many links you need —it is counted in pitches, not centimeters— and whether the run closes with a detachable connecting link or is riveted. Correct tension and alignment between the two sprockets greatly extend the chain's service life.
Dimensions
- Standard
- ASA / ANSI
- Rows
- Single
- Pitch
- 12.7mm
- Roller Ø
- 7.95mm
- Inner width
- 7.95mm
Frequently Asked Questions
- Is the ASA 40 compatible with sprockets from other brands?
- Yes, the ASA pitch is standardized internationally. Any 40-pitch sprocket, ANSI standard, is compatible, regardless of the brand of the chain or sprocket.
- What does it mean that the pitch is 12.7 mm?
- It is the distance from the center of one roller to the next. That value, together with the roller diameter and inner width, defines which sprocket corresponds.
- Can I order the ASA 40 in double or triple?
- Yes, it is available in all three versions: single, double and triple. Confirm that the sprocket you are going to use is prepared for the number of rows you need.

