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This motorcycle sprocket chain set is made of 20CrMnTi alloy steel precision forging. The tooth surface has a hardness of HRC 60 after high-frequency quenching, and the tensile strength of the matching chain exceeds 38kN. Specially built for motorcycle parts wholesalers, provide OEM customization for all models, ensure a stable life of more than 30000 kilometers, significantly reduce the after-sales return rate, and support batch orders.
precision forged alloy steel
Material
sixty
Tooth surface hardness
4 tons
Tensile resistance
The top 20CrMnTi carburizing steel is selected to replace ordinary A3 or 45# steel, and the carbon content is controlled between 0.17-0.23. Compared with traditional materials, the overall toughness is improved by 40%, effectively preventing the risk of gear fracture during high torque acceleration and ensuring structural integrity under extreme working conditions.
The automatic CNC gear hobbing machine is adopted, and the tolerance of tooth profile is strictly controlled within 0.1mm. The high-precision meshing degree increases the transmission efficiency to more than 98%, while reducing the chain beating caused by the meshing gap, and eliminating the abnormal noise during high-speed driving from the source.
The teeth are treated by high-frequency induction hardening with a depth of 1.5 mm-2.0mm, and the surface hardness reaches HRC 58-62, while the center maintains the toughness of HRC 30-40. This “outer hard inner tough” structure not only improves the wear resistance by 3 times, but also absorbs the impact of the road surface and prevents brittle fracture.
The chain pin adopts the advanced four-sided riveting process and cooperates with the 30CrMnTi pin material to increase the tensile strength to 38kN (for 520 specifications). This structure completely solves the hidden danger of the pin shaft falling off in the severe bump of the chain, and the impact resistance is about 25% better than the industry standard ISO 10190.
All factory chains are pre-stretched by 1/3 breaking load, which eliminates the initial physical extension of the material in advance. After loading, the “run-in period” chain elongation is reduced by 80%, and users do not need to adjust the chain tension frequently within the first 1000 kilometers.
Equipped with high quality X-Ring or O-Ring sealing ring, and vacuum high temperature grease between the pin and sleeve. This not only stops the intrusion of sediment, but also ensures continuous lubrication and the smooth operation of the chain system for more than 20,000km in the absence of external maintenance.
| Parameter item | Detailed Specifications | Notes |
| Sprocket Material | 20CrMnTi / SCM415 / C45 Steel | Select according to model level |
| Chain Material | 30CrMnTi Alloy Steel | The pins and rollers are made of wear-resistant alloy. |
| Pitch Standards | 420 / 428 / 520 / 525 / 530 | Compliant with ANSI/DIN/ISO standards |
| Heat Treatment | High Frequency Induction Hardening | For tooth hardening only |
| Surface Hardness | HRC 58 – 62 | Tooth surface wear-resistant layer |
| Core Hardness | HRC 30 – 45 | Maintain core toughness |
| Tensile Strength | 428H: ≥24kN / 520: ≥34kN / 530: ≥38kN | Far exceeding national standards |
| Surface Treatment | Zinc Plating / Black Electrophoresis / Chrome | Rust and corrosion prevention treatment |
| Machining Tolerance | Runout < 0.15mm | Ensure concentricity |
| Fatigue Life | > 6,000,000 cycles | Fatigue life test data |
Compared with the common 45# steel sprocket in the market, the biggest advantage of this motorcycle sprocket chain lies in the deep combination of material and heat treatment process. Ordinary products are often only treated with surface blackening or overall quenching and tempering (HRC 35 or so) in order to save costs. Although the hardness is uniform, the wear resistance is extremely poor. This product uses 20CrMnTi with the tooth surface high frequency quenching, under the premise of ensuring that the tooth root does not break, the tooth surface wear life extended by more than 2.5 times. In addition, the matching chain adopts solid sleeve technology, which has better roundness and tighter meshing with the sprocket than the rolled sleeve, thus greatly reducing the running noise.
Such users use motorcycles frequently every day, with long mileage and frequent start and stop. The high wear resistance and pre-stretching technology of this product greatly reduces the frequency of daily adjustment of the chain and replacement of accessories, saving them valuable maintenance time and maintenance costs.
For users who often ride across provinces or borders, they are faced with changeable road environment (rain, sediment). The O-Ring/X-Ring seal chain of this product has excellent dustproof and waterproof performance, and the alloy steel sprocket has strong fatigue resistance, which can ensure that the transmission system will not drop the chain during the journey of thousands of kilometers.
For the B- side repair shop that directly serves the owner of the terminal, the adaptability and convenience of installation of the product are very important. This series covers 428/520/530 and other mainstream specifications, and the tolerance is accurate, no need to polish or force knock during installation, can help technicians to quickly complete the replacement, improve customer satisfaction.
The off-road environment has a great impact on the transmission system. The high-toughness core of this product is designed to withstand the instantaneous huge torque when landing on a flying slope, prevent the sprocket from breaking teeth or chain breaking, and ensure the safety of riders under extreme sports. It is an ideal upgrade for high-performance off-road motorcycles.
After installation or regular inspection, the ladder should be supported and moved up and down in the middle of the lower chain. The standard free clearance should be controlled between 20mm-30mm. Too tight will accelerate wear and may damage the output shaft oil seal, too loose there is a risk of chain off.
The newly replaced motorcycle sprocket chain requires a running-in period of about 300-500 kilometers. During this period, it is recommended to avoid rapid acceleration and violent downshifting, so that the sprocket tooth surface and the chain roller gradually form the best fit surface, which helps to extend the subsequent service life.
It is recommended to clean and lubricate every 500-800 kilometers. Use special chain cleaning agent to remove old oil sludge, wipe dry and then spray chain wax or lubricating oil. Note that the nozzle should be sprayed to the gap between the chain roller and the chain plate, and wait for 15 minutes for grease to penetrate before riding.
Check the sprocket tooth profile every 3000 kilometers. If the tooth tip becomes sharp (serrated) or there is obvious depression on the side of the tooth valley, it indicates that the wear has exceeded the limit. At this time, it is strictly forbidden to replace only the chain. The sprocket chain must be replaced in complete sets, otherwise the old sprocket will quickly damage the new chain.
certificate
Welcome to our Frequently Asked Questions page. We have compiled answers to common questions you may have, hoping to provide you with clear and quick solutions. If you cannot find the information you need here, please feel free to contact our customer support team.
This motorcycle sprocket chain set is made of 20CrMnTi alloy steel precision forging. The tooth surface has a hardness of HRC 60 after high-frequency quenching, and the tensile strength of the matching chain exceeds 38kN. Specially built for motorcycle parts wholesalers, provide OEM customization for all models, ensure a stable life of more than 30000 kilometers, significantly reduce the after-sales return rate, and support batch orders.
Material
precision forged alloy steel
Tooth surface hardness
sixty
Tensile resistance
4 tons
The top 20CrMnTi carburizing steel is selected to replace ordinary A3 or 45# steel, and the carbon content is controlled between 0.17-0.23. Compared with traditional materials, the overall toughness is improved by 40%, effectively preventing the risk of gear fracture during high torque acceleration and ensuring structural integrity under extreme working conditions.
The automatic CNC gear hobbing machine is adopted, and the tolerance of tooth profile is strictly controlled within 0.1mm. The high-precision meshing degree increases the transmission efficiency to more than 98%, while reducing the chain beating caused by the meshing gap, and eliminating the abnormal noise during high-speed driving from the source.
The teeth are treated by high-frequency induction hardening with a depth of 1.5 mm-2.0mm, and the surface hardness reaches HRC 58-62, while the center maintains the toughness of HRC 30-40. This “outer hard inner tough” structure not only improves the wear resistance by 3 times, but also absorbs the impact of the road surface and prevents brittle fracture.
The chain pin adopts the advanced four-sided riveting process and cooperates with the 30CrMnTi pin material to increase the tensile strength to 38kN (for 520 specifications). This structure completely solves the hidden danger of the pin shaft falling off in the severe bump of the chain, and the impact resistance is about 25% better than the industry standard ISO 10190.
All factory chains are pre-stretched by 1/3 breaking load, which eliminates the initial physical extension of the material in advance. After loading, the “run-in period” chain elongation is reduced by 80%, and users do not need to adjust the chain tension frequently within the first 1000 kilometers.
Equipped with high quality X-Ring or O-Ring sealing ring, and vacuum high temperature grease between the pin and sleeve. This not only stops the intrusion of sediment, but also ensures continuous lubrication and the smooth operation of the chain system for more than 20,000km in the absence of external maintenance.
| Parameter item | Specifications/Description | Notes |
| Standard Sizes | BQ, NQ, HQ, PQ, PQ3 | Compliant with DCDMA international standards |
| Cutter Size | 1308 (13mm), 1613 (16mm), 1913 (19mm) | Select based on the hardness of the formation |
| Blade Count | 3 – 6 wings | Few-bladed drills are suitable for fast drilling in soft rock, while multiple-bladed drills are suitable for hard rock. |
| Applicable lithology (Formation) | Mudstone, sandstone, limestone, shale, salt rock | Mohs hardness 3-7 (f < 12) |
| Body Material | Matrix Body / Steel Body | The tire body is wear-resistant, and the steel body is impact-resistant. |
| Back Rake | 15° – 25° adjustable | The larger the angle, the stronger the impact resistance; the smaller the angle, the faster the cutting speed. |
| Connection thread | API Regular, IF, or special core-taking tube thread | After high-frequency quenching treatment, it is fatigue resistant. |
| Recommended WOB (Working Weight on Drill) | 6 – 15 kN (depending on drill bit diameter) | Compared to impregnated diamond bits, it requires less drilling pressure. |
Such users use motorcycles frequently every day, with long mileage and frequent start and stop. The high wear resistance and pre-stretching technology of this product greatly reduces the frequency of daily adjustment of the chain and replacement of accessories, saving them valuable maintenance time and maintenance costs.
For users who often ride across provinces or borders, they are faced with changeable road environment (rain, sediment). The O-Ring/X-Ring seal chain of this product has excellent dustproof and waterproof performance, and the alloy steel sprocket has strong fatigue resistance, which can ensure that the transmission system will not drop the chain during the journey of thousands of kilometers.
For the B- side repair shop that directly serves the owner of the terminal, the adaptability and convenience of installation of the product are very important. This series covers 428/520/530 and other mainstream specifications, and the tolerance is accurate, no need to polish or force knock during installation, can help technicians to quickly complete the replacement, improve customer satisfaction.
The off-road environment has a great impact on the transmission system. The high-toughness core of this product is designed to withstand the instantaneous huge torque when landing on a flying slope, prevent the sprocket from breaking teeth or chain breaking, and ensure the safety of riders under extreme sports. It is an ideal upgrade for high-performance off-road motorcycles.
After installation or regular inspection, the ladder should be supported and moved up and down in the middle of the lower chain. The standard free clearance should be controlled between 20mm-30mm. Too tight will accelerate wear and may damage the output shaft oil seal, too loose there is a risk of chain off.
The newly replaced motorcycle sprocket chain requires a running-in period of about 300-500 kilometers. During this period, it is recommended to avoid rapid acceleration and violent downshifting, so that the sprocket tooth surface and the chain roller gradually form the best fit surface, which helps to extend the subsequent service life.
It is recommended to clean and lubricate every 500-800 kilometers. Use special chain cleaning agent to remove old oil sludge, wipe dry and then spray chain wax or lubricating oil. Note that the nozzle should be sprayed to the gap between the chain roller and the chain plate, and wait for 15 minutes for grease to penetrate before riding.
Check the sprocket tooth profile every 3000 kilometers. If the tooth tip becomes sharp (serrated) or there is obvious depression on the side of the tooth valley, it indicates that the wear has exceeded the limit. At this time, it is strictly forbidden to replace only the chain. The sprocket chain must be replaced in complete sets, otherwise the old sprocket will quickly damage the new chain.
