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Roller Chain Case Studies

Failure Fatigue

Case Study Snapshot

Issue:

Failure Fatigue


Goal:

Improve chain wear life and decrease product costs


Solution:

Replace current chain with Diamond ANSI 60-2


Cost Savings:

$10,000 in saving after one year per line




Failure Fatigue

Grape Sorter


The Challenge:

An original equipment manufacturer produces a trunk shaker picking mechanism to harvest fruit from trellis systems. The shaking of the attachment is produced using a drive system powered by ANSI 60 double strand roller chain generating 350 – 400 vibrations per minute.


The Choices:

The starts and stops required to generate the shaking movement creates pulsating shock loads that, absorbed by the roller chain, contribute to link plate fatigue and premature chain failure.


The Solution:

To address the fatigue failures caused by the pulsation, Diamond recommended Diamond series ANSI 60-2 riveted roller chain with press-fit link and center plates. Unlike slip-fit link plates, which can accelerate fatigue failures due to flexibility, press-fit link plates provide rigid support at each tension point delivering significantly greater fatigue strength.


The Results:

Following the change to press-fit construction, this manufacturer saw in increase in uptime of two to three times versus the slip-fit style chain. That amounted to a savings of approximately $10,000 per instance.

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ASME / ANSI Roller Chain

Diamond Series

Diamond Chain's extensive ASME / ANSI product assortment provides industry leading wear life and is available in a variety of base materials, finishes, and lubrications.

Attachement Roller Chain

Infinity Series

Available in ANSI 25 through 240 and ISO 05B through 032B. Includes single and multi-strand, heavy series, and solutions for specialized applications.

Oil and Gas Chain

Sapphire Series

Includes ANSI 25 through 160 and ISO 05B through 048B single and multi-strand, and select maintenance-free, and attachment solutions.