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Why Sprocket Tooth Shape Matters
Jul 31,2025
In crawler crane undercarriage systems, the sprocket (drive wheel) is responsible for transmitting torque to the track chain. One key design feature is the tooth shape – either pointed or curved. Choosing the right type is critical for matching with different track chain structures.
Pointed Tooth Sprockets – For Dry Chains
Pointed teeth have sharp, narrow tips. They are typically used with dry chains, which are not sealed or lubricated. This design provides precise engagement with the bushing and helps remove debris during operation. It is ideal for crawler cranes and heavy equipment using dry track links.
Curved Tooth Sprockets – For Lubricated Chains
Curved teeth have a smoother, rounded profile. They are best suited for sealed and lubricated chains, protecting internal grease seals and reducing friction. This design offers smoother engagement and extends service life. Commonly used in excavators, dozers, and machines with lubricated chains.
Why the Match Matters
Using the wrong sprocket type can cause early wear, seal damage, or loss of power transmission. A pointed sprocket may damage a sealed chain, while a curved tooth may not grip a dry chain properly. Proper matching ensures efficient operation and longer part life.
At Yantai Evergrowing, our drive wheels are designed to match your track system, whether dry or lubricated. We offer both standard and custom sprockets to meet different working conditions.
Need help selecting the right sprocket? Contact our team for technical support.
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YANTAI EVERGROWING IMPORT AND EXPORT CO., LTD.
ADD: A508, NO 133-1 YINGCHUN ROAD, LAISHAN DISTRICT, YANTAI CITY, CHINA
ZIP CODE: 264003
TEL: +86-535-6724921
FAX: +86-535-6724922
EMAIL: info@crawlercranesparts.com