Chain couplings are made up with both left and right-hand sprockets that are coupled together by duplex metal roller chains. Roller chain couplings are equipped with a yellow outer casing sealed with O rings.
Chain couplings have a high torque capacity with bores from 12 to 150 mm diameter.
To ensure that chain couplings have the maximum service life. The O ring should always be used. This especially important when the drive is being used a high speeds or in a damp environment. The space between the chain and cover, should be filled with a soft to medium consistency grease.