Applications
Table 6.2 Typical Material of Commonly Used Chain Series
Non- Heat-Treated
400 Series
304
Steel
Heat-Treated Steel
Stainless Steel
Stainless Steel
Cast Iron
Side Plate Pin Bushing Roller
: Available
: Not Typically Used
(6) It is relatively easy for users to modify chain attachments, by machining or welding, to fit specific applications. Consult with the chain manufac- turer in advance to avoid damaging the chain. 6.1.3.3 Disadvantages (1) Larger pitch chain increases the size of the equipment, which may be considered an obstacle. (2) To keep the size of the equipment small when using large pitch chain, sprockets with small numbers of teeth are commonly used. This contributes to greater speed variation of the chain. (3) Although applications can run as fast as 330 m/min., normally large pitch chains should be used at low speeds. Large pitch conveyor chains are generally more costly than smaller pitch roller chains, and in the case that the system or the chain does not function as designed, it may be more difficult to resolve these issues than with smaller chains. You are ultimately responsible for selecting the proper chain, so follow all the steps in the selection process, and consider what effects the system or the conveyed materials have on the chain, in strength, wear, corrosion, etc. As stipulated in previous sections of this book, the calculations of bending and twisting strength of chain attachments, large or small, are the same as with other machine elements. Work with a chain manufacturer who has a good reputation for quality and safety; who offers knowledge, expertise, and superior service; and who manufac- tures quality product. Remember, not all chains and attachments are listed in the catalog, as it would be impractical to publish all specifications and information.
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