Sprocket and Chain

Description

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%.


Quelques produits dans cette catégorie

Products
10782140

Maedler

Sprocket KRF with hub 12 B-1 21 teeth material steel bore 40H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782142

Maedler

Sprocket KRF with hub 12 B-1 21 teeth material steel bore 42H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782145

Maedler

Sprocket KRF with hub 12 B-1 21 teeth material steel bore 45H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782148

Maedler

Sprocket KRF with hub 12 B-1 21 teeth material steel bore 48H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782150

Maedler

Sprocket KRF with hub 12 B-1 21 teeth material steel bore 50H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782225

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 25H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782228

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 28H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782230

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 30H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782232

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 32H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782235

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 35H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782238

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 38H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782240

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 40H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782242

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 42H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782245

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 45H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782248

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 48H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782250

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 50H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782325

Maedler

Sprocket KRF with hub 12 B-1 23 teeth material steel bore 25H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782328

Maedler

Sprocket KRF with hub 12 B-1 23 teeth material steel bore 28H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782330

Maedler

Sprocket KRF with hub 12 B-1 23 teeth material steel bore 30H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782332

Maedler

Sprocket KRF with hub 12 B-1 23 teeth material steel bore 32H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

Products Description IMAGE
10782140

Maedler

Sprocket KRF with hub 12 B-1 21 teeth material steel bore 40H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782142

Maedler

Sprocket KRF with hub 12 B-1 21 teeth material steel bore 42H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782145

Maedler

Sprocket KRF with hub 12 B-1 21 teeth material steel bore 45H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782148

Maedler

Sprocket KRF with hub 12 B-1 21 teeth material steel bore 48H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782150

Maedler

Sprocket KRF with hub 12 B-1 21 teeth material steel bore 50H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782225

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 25H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782228

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 28H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782230

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 30H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782232

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 32H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782235

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 35H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782238

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 38H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782240

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 40H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782242

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 42H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782245

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 45H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782248

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 48H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782250

Maedler

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 50H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782325

Maedler

Sprocket KRF with hub 12 B-1 23 teeth material steel bore 25H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782328

Maedler

Sprocket KRF with hub 12 B-1 23 teeth material steel bore 28H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782330

Maedler

Sprocket KRF with hub 12 B-1 23 teeth material steel bore 30H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10782332

Maedler

Sprocket KRF with hub 12 B-1 23 teeth material steel bore 32H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

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  • Broche à vis à billes
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  • Sprocket and Chain
  • Timing belt and pulley
  • Toothed rack and pinion

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%.


10782140

Sprocket KRF with hub 12 B-1 21 teeth material steel bore 40H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
44,27 € 44.27 EUR

10782142

Sprocket KRF with hub 12 B-1 21 teeth material steel bore 42H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
44,27 € 44.27 EUR

10782145

Sprocket KRF with hub 12 B-1 21 teeth material steel bore 45H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
44,27 € 44.27 EUR

10782148

Sprocket KRF with hub 12 B-1 21 teeth material steel bore 48H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
44,27 € 44.27 EUR

10782150

Sprocket KRF with hub 12 B-1 21 teeth material steel bore 50H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
44,27 € 44.27 EUR

10782225

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 25H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
47,24 € 47.24 EUR

10782228

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 28H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
47,24 € 47.24 EUR

10782230

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 30H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
47,24 € 47.24 EUR

10782232

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 32H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
47,24 € 47.24 EUR

10782235

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 35H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
47,24 € 47.24 EUR

10782238

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 38H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
47,24 € 47.24 EUR

10782240

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 40H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
47,24 € 47.24 EUR

10782242

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 42H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
47,24 € 47.24 EUR

10782245

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 45H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
47,24 € 47.24 EUR

10782248

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 48H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
47,24 € 47.24 EUR

10782250

Sprocket KRF with hub 12 B-1 22 teeth material steel bore 50H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
47,24 € 47.24 EUR

10782325

Sprocket KRF with hub 12 B-1 23 teeth material steel bore 25H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
47,93 € 47.93 EUR

10782328

Sprocket KRF with hub 12 B-1 23 teeth material steel bore 28H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
47,93 € 47.93 EUR

10782330

Sprocket KRF with hub 12 B-1 23 teeth material steel bore 30H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
47,93 € 47.93 EUR

10782332

Sprocket KRF with hub 12 B-1 23 teeth material steel bore 32H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
47,93 € 47.93 EUR