Question: What is the outer and the inner member? What is the difference between the roller and the housing? What is the name the parts of the chain and where they belong?
Outer plate – forms part of the article. They are pressed into the pins. The difference between external and internal plate is a layman in diameter holes, outer plates are always smaller hole. Some chains have different strength of the inner and outer plates. The plates are stamped from sheet metal and then heat treatment. For some chains, plates galvanize for better corrosion resistance and attractive design. To achieve good dynamic strength platelet their surface blasting with steel balls. Blue and yellow plates with some chains are formed by thermal soaking in a kiln at a certain temperature. Plates for installation in sealed chains are well trimmed surface by tumbling, to increase the life of the sealing rings.
The plate inside – Part of the Internal article. They are pressed into the housing.
Pin – Part of the outer link, pin connects to external article. The interface pin with case forms the bottom of the chain in which there is a bending of the chain. The pin is cut from the wire mechanically treated and heat treated. Some chains have studs covered with a layer of chromium for increased durability. This is used thermochemical reactions in special furnaces. Before mounting the chain pins are carefully polishing the ceramic tělískách.
Housing – together with internal plates (or more rollers) article. Poudre is molded in the plates. For ordinary industrial chains sleeve produces coiling of the strip sheet for motorcycle chains are formed by drawing the wire (called seamless casing). To increase the life of the joint inside the housing face conical hole.
Roller – part of the internal article. Replacing diameter casing. Roller chain is for easier rolling over chain wheels and thus to minimize friction and wear. Produced similarly as a seamless sleeve pulling wire. Subsequently, heat-treated and sanded steel balls for increased durability.
Sealing rings (only with sealed chains) – Rings in the chain to seal the joint. Located between the outer and inner plate and prevent leakage of lubricant from a joint or vice versa dirt. In CZ there are two types of sealing ring: O-rings and X-rings. O-rings with a circular cross-section is mounted on chains used on motorcycles with less speed and performance. These rings also cause greater bending stiffness of the chain. Conversely, X-rings exhibit lower friction (sealing lips only) and therefore can be used for greater speed. The life of these X-rings are compared with O-rings later. CZ uses the patented X-shaped sealing ring. The sealing rings are made of NBR.
Link – by their very nature outer link. It brings together the loose ends of the chain. They are divided into separable and permanent (riveting). How to work with these connectors is described in the chapter “Installation and maintenance of chains.”
| Motorcycle roller chain consists of inner links (1) and outer links (2). Their parts are further illustrated in the following examples.
| Parts of the outer link: 1-plate outer, 2-pin, 3-sealing rings (sealed chains)
|| Part of the internal article: 1-inner plate, 2 housing, 3-roll
Question: Do I have to change each time you replace the chain and sprockets?
Answer: For motorcycles ever. When using netěsněného chain (motocross, enduro) it is not a rule, the wheels varies due to the smaller strings of life compared to the sealed individually according to their wear. For more information in the chapter Installation & adjustment.
Question: I would like to bike wash chain that was nice again. What to do?
Answer: If the chain is dirty from mud or dust, use a pressure washer. Pressurized water can be easily cleaned as chains unsealed or sealed. If it is dirty from grease, chain without rubber rings Wash in petrol or kerosene. O-ring chains but in any case! We recommend using cleaning by mechanical means. More in the maintenance chain.