1. Is the inner/outer chain deformed, cracked and embroidered?
2. Whether the pin is deformed or rotated or embroidered
3. Whether the roller is cracked, damaged or over-worn
4. Is the joint loose and deformed?
5. Whether there is abnormal noise or vibration during operation, and whether the lubrication condition of the chain is good or not.
Inspection methods
The accuracy of chain length should be measured according to the following requirements:
1. Measuring front chain cleaned
2. The measured chain should be surrounded by two sprockets, and the upper and lower sides of the measured chain should be supported.
3. The chain before measurement should stay for 1 minute under the condition of applying one third and minimum ultimate tensile load.
4. When measuring, the specified measuring load should be applied on the chain to make the upper and lower chains tense and the chains in the sprockets ensure normal tooth engagement.
5. Measuring the Center Distance of Two Sprockets
Measure chain elongation:
1. In order to remove the gap of the whole chain, it is necessary to measure the tension on the chain to some extent.
2. When measuring, in order to minimize errors, measure at 6-10 knots.
3. Measure the inner and outer dimensions of L1 and L2 between the rollers of knots in order to find the judgment size L=(L1+L2)/2.
4. Find out the elongation of the chain. This value is in contrast with the use limit value of the chain elongation of the preceding item.
Chain structure: It consists of inner and outer chains. It consists of five parts: inner chain plate, outer chain plate, pin shaft, sleeve and roller. The quality of chain depends on pin shaft and sleeve.
GIDI CHAIN LIMITED supply lots of roller chain, conveyor chain, Leaf Chain, welded chain, forged chain, Palm Oil Mill Chain, Hoisting Chain,Mine and Metallurgy Chain, etc. totaling over 3000 varieties. and 90% of chains are exported to worldwide, Which mainly export to Southeast Asia, European, North America, South America. Chains are welcomed by customers with the excellent quality. Our company owns more than 100 sets of advanced and professional manufacturing equipment, Perfect and rigorous QC system is implemented in every process from material purchasing to finished products packaging. Also, we have passed the ISO9001: 2015 Quality Management System Certification.
More Detail : www.gidi-chain.com