O rings were available first and the ring is literally o shaped.
O ring chain vs x ring chain.
The x ring design is similar to the o ring design in almost every way except to increase the efficiency of the chain the design was altered to an x style ring where the contact point of the ring would only be on four points.
Prox x ring chains operate with approximately 40 less friction than a comparable o ring chain.
To keep the internal lubrication in and to keep the dirt out thus vastly improving the durability of the chain.
O ring chains have a longer operational life than roller chains especially under off road conditions.
The x ring type chains are more modern chains with x shaped rubber ring placed in between the chain plates to seal the grease filled inside the chain components.
This is great for.
In some cases they will last as much as three times longer than a standard roller chain.
Qx refers to the specific shape of the o ring which results in less rubber surface area touching the chain plates while still sealing in grease.
The x ring chain is a specialized type of sealed roller chain used to transfer mechanical power.
Casual riders and racers more often prefer a standard chain most notably because of cost but also the weight savings.
The o ring chain debuted in 1971 while the x ring has been around for about 10 years or so and has become a popular choice for off road riders.
The only maintenance required is the occasional application of lube to the chain.
The sealing rings then have two purposes.
Like the standard o ring chains it is also used in high performance motorcycles.
As the two plates push on either side of the o ring it distorts to have two flat sides to its shape.
O ring chains are virtually maintenance free after installation.
Finally expect to pay two to three times as much for an o ring chain compared to the standard.
As upon pressing these type of rings come in contact with lesser surface area and hence less drag coefficient is generated with same efficient sealing property as o ring chains provide.
O ring chains also stretch less and last far longer than the standard chain.
It has higher performance in terms of durability lifetime and power loss than non o ring chains as it has less friction than o ring chain while.