Chain ​​tensioner with sprocket

External part, sprocket, pins and spring are made of zinc plated steel.
Cursor and spring guide are made of black polyamide.
To be assembled in the transmissions with roller chain to stretch it.
On request and for a MOQ, sprockets with other number of teeth.
For roller chain type DIN 8187 08-B1.
Min. tension load 60N / Max. tension load 110N.