Ask The Engineer
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- Q - In the late 1940s, Harley Davidson made a lightweight 2 stroke motorcycle that used Diamond #35 chain in the front and #40 in the rear. What was the last year that Diamond Chain manufactured this bi-color (blue inner links and gray outer plates) #40 roller chain?
A - Diamond Chain discontinu...Read More
- Q - How does Diamond Chain mark the links on their products? I want to make sure Im getting the real McCoy and not an inferior chain.
A Diamond Chain uses three distinct product marks to differentiate between its Diamond, Infinity, and Sapphire product series. Diamond ...Read More
- Q - Is there a proper way to store roller chain when its not being used? We use ANSI 50 and 60 roller chain on a fertilizer roller for about three weeks out of the year. Weve been removing the chain and storing it in diesel fuel, but the links are starting to get stiff.
A Whe...Read More
- Q - Does double pitch roller chain require different sprockets?
A The answer depends on the sprocket. For sprockets with 30 or more teeth, the answer is no. For sprockets with less than 30 teeth, a sprocket designed for double pitch chain is necessary.
We do recommend that a sprocke...Read More
- Q - Does heavy series chain require different sprockets?
A While single-strand heavy series roller chain does not require different sprockets, multi-strand heavy series chain does as the thicker plates make the width between the strands of chain wider. This means that the centerline of th...Read More
- Q Should Duralube series chain be lubricated after it is installed?
A Although Duralube is Diamonds maintenance-free roller chain, anytime you have the opportunity, or ability, to lubricate roller chain, you should. Additional lubrication is beneficial and can significantly e...Read More
- Q Diamond chains sometimes seem like they are over-lubed compared to other chain manufacturers. Why is that?
A - Diamond Chain is always working to maximize roller chain service life. We know from both our history and our product tests that proper lubrication is vital. The challenge is t...Read More
- Q What are the differences between 50, 50 1R, and 50 2R roller chain?
A The 50 in the part number refers to ANSI size 50 roller chain. The R refers to riveted chain construction. Riveted chains use a side mash on the pins to hold the link plates in place in...Read More
- Q What is oval contour chain and how is it different from standard ANSI chain?
A Diamonds oval contour roller chains feature a different link plate from Diamonds standard ANSI series chain. Unlike Diamonds standard figure eight style link plate, the ov...Read More
- Q Our operation requires a daily cleaning that includes bleach, alcohol, and water. What type of chain would you suggest for this type of operating environment?
A For this application, we recommend using Diamond's AP series stainless steel chain. The AP series uses austenitic stai...Read More
- Q - Why does Diamond's maintenance free Duralube chain ship with additional external lubricant?
A - Although Duralube's sintered bushing and rollers have lubricant drawn in under vacuum, the additional external lubricant applied prior to shipping provides additional protection for the roller chai...Read More