Chain tensioners for your drive solution
G&G chain tensioners ensure that chains run smoothly, quietly and with low wear and vibration. They make a major contribution to extending the maintenance intervals of chain drives. This requires the correct installation and maintenance of the chain tensioner, i.e. precisely aligned sprockets, a permanently slightly pre-tensioned roller chain and regular lubrication. G&G chain tensioners are maintenance-free and tear-proof.
Product groups
Efficient - Economical - Reliable - Maintenance-free
G&G chain tensioners and idler sprockets are used in mechanical and plant engineering as chain guiding, deflection and tensioning units for roller chains according to DIN 8187. G&G chain tensioners consist of a continuously tensioning torsion element and idler sprockets with a mounting kit. G&G supplies all components for chain tensioners individually, not assembled.
The rubber-mounted tensioning element is suitable for both chain running and tensioning directions. It is best to fit a chain tensioner close behind the drive gear. Using chain tensioners is an effective way to compensate for any elongation of roller chains that occurs during operation.
The aim here is to keep the length of the loose chain strand to be tensioned as short as possible. This keeps the forces resulting from the chain weight and centrifugal force under control and prevents the chain links from skipping thanks to the continuous application of contact pressure. Ideally, the tensioner arm should be parallel to the chain run and engage with the chain from the outside. The tensioning pressure is infinitely adjustable.
For chain drives with a change of running direction, we recommend the installation of two chain tensioners, one for each running direction. These should only be pre-tensioned by a maximum of 20° so that a free return angle of approx. 10° remains when changing the direction of rotation.
When tensioning for the first time, at least 3 teeth of each sprocket must engage in the roller chain. The free chain length from sprocket to idler sprocket to sprocket should be at least 4 pitches in each case.