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Sprocket and Chain

When used properly, high quality roller chains are powerful and reliable drive systems. They can serve to bridge large centre distances. Various transmission ratios can be realized, independently of the centre distance. In Europe mainly roller chains according to DIN ISO 606 (formerly DIN 8187) are used.

Dimensioning and Efficiency 

The calculation can be made with this tool :   MÄDLER - Tools (eassistant.eu) or refer to page 41 or refer to the e-catalogue to determine a chain drive. With proper lubrication the degree of efficiency is approx. 98 %.

Note regarding the Breaking Load 

The DIN ISO 606 (formerly DIN 8187) specifies the minimum breaking load for each chain size. When this breaking load is exceeded, the chain is destroyed. Roller chains should be loaded with no more than one sixth of the stated breaking load, to avoid an early plastic deformation (permanent elongation). 

Mounting and Maintenance 

The shafts must be set in parallel. The sprockets must be aligned. The slack span should amount to approx 1% to max 2% of the centre distance. For this purpose we recommend mounting a chain tensioner. Large centre distances require a support (guide rail) to be used. 

Chain drives must always be well lubricated. Lubricants and lubrication methods depend on the specific application. 

Determining the Chain Length 

The chain length can be stated in meter or mm, or by stating the number of links. In the latter case, inner and outer links are counted. The chains are usually delivered open. The last link on both ends is an inner link. This leads to an uneven number of links. If a straight connecting ling is used, the closed chain strand has an even number of links. An uneven number of links in a closed strand can only be realized by using a cranked link.

 Note: this link reduces the load bearing capacity of the chain by 20%.


77051500

Chain wheel for round link steel chains made of cast iron 20 DIN 766 outer diameter 200mm for diameter 5/6 mm
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1.00 € 1.0 EUR

77060700

Chain wheel for round link steel chains made of cast iron 20 DIN 766 outer diameter 115mm for diameter 8 mm
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1.00 € 1.0 EUR

77060800

Chain wheel for round link steel chains made of cast iron 20 DIN 766 outer diameter 162mm for diameter 8 mm
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1.00 € 1.0 EUR

77061200

Chain wheel for round link steel chains made of cast iron 20 DIN 766 outer diameter 212mm for diameter 8 mm
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1.00 € 1.0 EUR

77070500

Chain wheel for round link steel chains made of cast iron 20 DIN 766 outer diameter 115mm for diameter 10 mm
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1.00 € 1.0 EUR

77071200

Chain wheel for round link steel chains made of cast iron 20 DIN 766 outer diameter 250mm for diameter 10 mm
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1.00 € 1.0 EUR

77099004

Round-link steel chain similar to DIN 766A quality class 3 diameter 4 mm stainless steel
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1.00 € 1.0 EUR

77099005

Round-link steel chain similar to DIN 766A quality class 3 diameter 5 mm stainless steel
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1.00 € 1.0 EUR

77099006

Round-link steel chain similar to DIN 766A quality class 3 diameter 6 mm stainless steel
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1.00 € 1.0 EUR

77099008

Round-link steel chain similar to DIN 766A quality class 3 diameter 8 mm stainless steel
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1.00 € 1.0 EUR

77099010

Round-link steel chain similar to DIN 766A quality class 3 diameter 10 mm stainless steel
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1.00 € 1.0 EUR

77099135

Spare chain link RN for chain DIN 766A material 1.4401 (AISI316) diameter 5 mm
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1.00 € 1.0 EUR

77099136

Spare chain link RN for chain DIN 766A material 1.4401 (AISI316) diameter 6 mm
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1.00 € 1.0 EUR

77099138

Spare chain link RN for chain DIN 766A material 1.4401 (AISI316) diameter 8 mm
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1.00 € 1.0 EUR

77099140

Spare chain link RN for chain DIN 766A material 1.4401 (AISI316) diameter 10mm
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1.00 € 1.0 EUR

77110400

Chain wheel, 4 teeth made of cast iron 20 DIN 766 outer diameter 56 mm, for diameter 4 mm
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1.00 € 1.0 EUR

77110800

Chain wheel, 8 teeth made of cast iron 20 DIN 766 outer diameter 96 mm, for diameter 4 mm
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1.00 € 1.0 EUR

77111200

Chain wheel, 12 teeth made of cast iron 20 DIN 766 outer diameter 140 mm, for diameter 4 mm
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1.00 € 1.0 EUR

77111500

Chain wheel, 15 teeth made of cast iron 20 DIN 766 outer diameter 165mm, for diameter 4 mm
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1.00 € 1.0 EUR

77111800

Chain wheel, 18 teeth made of cast iron 20 DIN 766 outer diameter 200 mm, for diameter 4 mm
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1.00 € 1.0 EUR