The chain is situated at the external surface area of the wheel, equal a belt, and the teeth stick outside the chain. The chain grips with the wheel through the teeth that are located in the bottom of the chain. The chain the teeth and the chain wheel teeth are so constituted that by wear at the linking elements the pitch raises, the chain accordingly have a tendency to re-locate on the tooth surfaces, so to hold on a larger pitch diameter; the consequence of this move is that the pitch of the chain and the pitch of the wheel increase to the same extent.
The load on the teeth is divided across all of the teeth within the contact arc, regardless of the extension by wear.
The links usually do not show any gliding on or of the teeth, which carries a soft and practically noiseless gripping; this tranny was also engineered for transmitting power or higher speeds than this was allowed for roll chains.
The return of the “low noise chain” can amount 99% and for the entire transfer from 96% to 97% under favourable conditions; of 94% upto 96% there is a guarantee with well designed transmission under average operating conditions.
The life time and maintenance of low noise Special Chains china chains depends mainly on the design of the entire chain drive, the strain arrangement included. At very loose chains the balancing of the chain will increase the wear. A good tension arrangement can dual the lifetime. A slight clearance is necessary with a minimum of +/-3 mm. Although the chain is getting higher positioned on the teeth upon stretching of the pitch, this stretching is not moderated by the straight portion of the chain, which means that this section can be slacking at wear.