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HOW CAN YOU RECOGNISE THE WEAR PATTERNS OF SPROCKETS AND SEGMENTS?

Sprockets and segments should always run in line with the chain’s pitch. If the sprocket or segment is worn, the points of the gear ring will become sharp. This is because there is play between the pins and the bushings. Another common wear pattern for sprockets and segments is the lateral wear. This is caused by (among others) worn chain guides, a twisted undercarriage, or poor guiding of the front wheel. It can also be caused by the filtration of hard materials between the bushings and the cogwheel, or by incorrect alignment. To limit wear from the infiltration of soil (packing), we make sand notches in our sprockets.

Sometimes the machine’s sprockets or segments are sharp, but the track links appear to be in reasonable condition. We are frequently asked whether the sprockets still need to be changed. The only reason why a sprocket becomes sharp is through the chain’s increased pitch. An increase in pitch creates more play between the pin and the bushing. As a result, the chain’s bushing no longer runs in line with the hollow part of the sprocket. This causes wear on the sprockets and the points become sharp. So never only replace a sprocket. If a track drive sprocket from an excavator with dry chains needs to be replaced, then the track links should always be replaced as well, and vice versa.

Quanzhou Hongding Construction Machinery Co., Ltd. is specialized in the research & development, manufacturing and supplying of machinery parts and accessories, loed in "the capital of East Asian culture" and the starting point of "Maritime Silk Road", Quanzhou, Fujian Province. Surrounded by Fujian Economic Triangle, the company has the advantage when it comes to transportation in trading. The products includes various types of excavator, bulldozer support heavy wheel, sprocket, excavator idler, guide wheel, rail chain assembly, frame, all kinds of hydraulic cylinders, shaw, shaft, set of high strength bolts, Excavator Sprocket and other excavator mechanical parts. Hongding Machinery has domestically advanced production equipment and testing methods, and has passed the third party authority certifiion as well as international certifiion (ISOCE). The products sell well all over the country, and has been exported to Europe, the Middle East, Africa, Southeast Asia and other countries, based on the leading technology, reliable quality, product variety, reasonable prices and good reputation.

In the next stage of the development, Hongding Machinery will make it more excellent, constantly improving the production and competitiveness, making the supplying chain more thorough. Based on the quality, integrity, mutual benefit and common development, we are seeking for long-term partnerships worldwide, and developing with higher quality, making a leading machinery parts producer to provide customers with better service. Warmly welcome all domestically and abroad to visit us or to consult. Looking forward to the cooperation with you.