The Complete Guide to Chain

2.2.3 Transmission Capability of Drive Chains

We have derived fatigue limits by testing. But just as you can't judge a person by examination alone, so we must also check whether the results of our tests can be put to practical use. Some questions remain:

  1. The chain's fatigue limit (see Basics Section 2.2.2) is tested in a linear configuration (Figure 2.1). But in wrapping transmission, the chain is engaging with the sprocket. Is there any difference between these two?
  2. A new roller chain is used. Is there any decrease in the strength of a used chain?
  3. Do connecting links or offset links have the same strength?

To answer these questions, a number of experiments and investigations were done. The following are the findings.