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Parameters and Key Points of Designing Roller Chain Drive

Parameters and Key Points of Designing Roller Chain Drive

Issue Time:2021-09-02
 the basic knowledge of double pitch precision roller chains

A roller chain is a kind of chain used to transmit mechanical power. It is a type of chain drive and is widely used in household, industrial and agricultural machinery. It is linked together by a series of short cylindrical rollers and driven by a gear called a sprocket. It is a simple, reliable, and efficient power transmission device. If you want the roller chain to play a stable and efficient transmission efficiency, you must consider the following design parameters and key points.

Design Parameters

Before selecting the chain and sprocket, the following design parameters must be determined.

(1) Transmit power

(2) Types of driving and driven machinery

(3) Rotation speed and diameter of the main and driven shafts

(4) Arrangement of center distance and shafting

(5) Environmental conditions

For chain selection, the single-row chain with the smallest pitch can be selected according to the modified power and the speed of the small sprocket. When it is required to be used in a more compact transmission device, a multi-row chain with a smaller pitch can be selected, so that the diameter of the sprocket will also be reduced. In order to ensure that the wear of the chain drive is reduced, a suitable lubrication method should be used. The lubrication method depends on the speed and rated power of the chain.

Design Points

1. Chain-drive center distance

The preferred value of the center distance is 30-50 times the chain pitch, but the wrap angle of the chain on the small sprocket should not be less than 120 degrees.

2. Adjustment of chain tension

The chain tension is mainly based on the adjustment of the center distance. In addition, tensioning can also be achieved by using tensioning wheels or methods, especially for inclined transmissions with an angle of more than 60 degrees from the horizontal, tensioning should be considered, and care should be taken to avoid additional loads on the chain.

3. Chain sag

The allowable sag at the midpoint of the chain edge is 1%-3% of the center distance value.

When designing a roller chain drive, not only the characteristics of the chain itself must be considered, but also the needs of the application scenario. If you want to know more about roller chains after reading the above content, you can get a comprehensive solution by contacting us. The roller chains we design and produce are exquisite in craftsmanship and excellent in quality, which can meet the diverse needs of users.

As a professional quality chain manufacturer, we always put the needs of our customers first. We have an experienced production team, and carry out a full range of quality control on the quality of products, and can provide customers with high-quality and safe products. At the same time, we will also provide thoughtful one-stop service and effective solutions according to customer needs. If you want to buy our roller chain, please contact us immediately!
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