How to measure plastic chains:

1. The chain is cleaned before measurement.

2. Encircle the chain under test on the two sprockets, and the upper and lower sides of the chain under test should be supported.

3. Before the measurement, the chain should stay for 1 minute under the state of applying one-third smaller ultimate tensile load.

4. When measuring, apply the specified measuring load on the chain to tension the upper and lower chains. The chain and the sprocket should ensure normal meshing. 5. Measure the center distance of the two sprockets.

Measuring the full length of the chain: how to measure the chain more accurately?

1. In order to remove the play of the entire chain, it is necessary to apply a certain degree of tension on the chain to measure.

2. When measuring, in order to minimize the error, measure at the place of section 6-10 (link).

3. Measure the inner L1 and outer L2 dimensions between the rollers of the number of segments to obtain the judgment dimension L=(L1+L2)/2.

4. Find the elongation length of the chain, and this value is compared with the limit value of the chain elongation in the preceding paragraph.

The elongation of the chain = judgment size - reference length / reference length * 100%.

Reference length = chain pitch * number of knots.