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%.


Some products in this category

Products
10981748

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 17 teeth material steel bore 48H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981750

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 17 teeth material steel bore 50H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981760

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 17 teeth material steel bore 60H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981535

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 35H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981538

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 38H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981540

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 40H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981542

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 42H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981545

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 45H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981548

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 48H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981550

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 50H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981560

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 60H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981638

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 38H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981640

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 40H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981642

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 42H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981645

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 45H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981648

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 48H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981650

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 50H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981660

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 60H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981665

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 65H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981670

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 70H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

Products DESCRIPTIOn
PICTURE
10981748

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 17 teeth material steel bore 48H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981750

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 17 teeth material steel bore 50H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981760

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 17 teeth material steel bore 60H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981535

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 35H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981538

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 38H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981540

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 40H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981542

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 42H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981545

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 45H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981548

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 48H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981550

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 50H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981560

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 60H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981638

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 38H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981640

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 40H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981642

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 42H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981645

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 45H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981648

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 48H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981650

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 50H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981660

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 60H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981665

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 65H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

10981670

Maedler

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 70H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened

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  • Ball screw spindle
  • Lead screws
  • 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%.


10981748

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 17 teeth material steel bore 48H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
86.01 € 86.01 EUR

10981750

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 17 teeth material steel bore 50H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
86.01 € 86.01 EUR

10981760

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 17 teeth material steel bore 60H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
86.01 € 86.01 EUR

10981535

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 35H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
70.75 € 70.75 EUR

10981538

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 38H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
70.75 € 70.75 EUR

10981540

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 40H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
70.75 € 70.75 EUR

10981542

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 42H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
70.75 € 70.75 EUR

10981545

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 45H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
70.75 € 70.75 EUR

10981548

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 48H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
70.75 € 70.75 EUR

10981550

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 50H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
70.75 € 70.75 EUR

10981560

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 15 teeth material steel bore 60H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
70.75 € 70.75 EUR

10981638

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 38H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
81.10 € 81.10000000000001 EUR

10981640

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 40H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
81.10 € 81.10000000000001 EUR

10981642

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 42H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
81.10 € 81.10000000000001 EUR

10981645

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 45H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
81.10 € 81.10000000000001 EUR

10981648

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 48H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
81.10 € 81.10000000000001 EUR

10981650

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 50H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
81.10 € 81.10000000000001 EUR

10981660

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 60H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
81.10 € 81.10000000000001 EUR

10981665

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 65H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
81.10 € 81.10000000000001 EUR

10981670

Sprocket KRF with hub 20 B-1 1 1/4"x3/4" 16 teeth material steel bore 70H7 keyway DIN 6885/1 2 set screw threads teeth induction hardened
Lees meer 
81.10 € 81.10000000000001 EUR