Motomaxsfr
Search Product
Motomaxsfr 520H heavy-duty chain is designed with thickened chain plates and anti-fatigue pins. It is specially designed for high torque and harsh off-road environment, with excellent tensile strength and long life. As a source entity factory with 33 years of manufacturing experience, Motomaxsfr have no middlemen to earn the difference, providing you with highly competitive ex-factory prices, mass customization services and efficient delivery speed.
520H chain is the 1 heavy-duty motorcycle roller drive chain that has been strengthened and thickened. It is mainly used to smoothly and efficiently transmit the power of the engine or motor to the rear wheels. It is directly installed on the front and rear sprockets of the vehicle. It is usually made of high-quality alloy steel to withstand high-strength impact.
compared with standard 520 chain, the thickness of chain plate of this chain is increased to 2.2mm, which improves the overall fatigue strength and compressive deformation resistance by more than 20%, and effectively avoids the risk of chain elongation and fracture during high torque output.
precision stamping and progressive die technology with tolerance controlled within 0.01mm is adopted to ensure that the meshing smoothness of each chain link and sprocket is improved 15%, the running resistance is greatly reduced, and the running noise is reduced to below 78 decibels.
pin shaft surface after deep carbon-nitrogen co-penetration and hardening heat treatment, surface hardness of HV650 or more, even in the dust off-road or ATV riding environment, can reduce the pin shaft wear, extend the overall service life.
the pin head adopts a high-specification four-point crimping riveting process, and the locking force is 30% higher than that of ordinary riveting. Under high-speed driving and continuous jumping impact, it can effectively prevent the outer chain plate from falling off. Ensure riding safety.
before leaving the factory, special grease immersion and penetration treatment is carried out in a high temperature and high vacuum environment to ensure that the lubricating oil completely fills the gap between the pin shaft and the shaft sleeve, eliminates the stretch adjustment period of the initial driving of the vehicle, and provides out-of-the-box maintenance-free performance.
through finite element analysis to optimize the structure of the inner chain plate, under the premise of ensuring the core mechanical performance and impact resistance, reduce the weight of the chain, reduce the centrifugal force and moment of inertia, so that the power loss of the motor is lower.
| Parameter Items | International Standard Technical Specifications |
| Product Model | 520H Heavy Duty |
| Pitch | 15.875 mm |
| Roller Diameter | 10.16 mm |
| Width between Inner Plates | 6.35 mm |
| Pin Length | 20.20 mm |
| Plate Thickness | 2.20 mm |
| Average Tensile Strength | 38.5 kN |
| Weight per 100 links | 1.04 kg |
| Master Link Type | Clip Type / Snap-on Type |
suitable for overseas regional motorcycle parts wholesale enterprises that need to find long-term stable supply, require factories to have large-volume supply capacity and strict quality control system.
suitable for vehicle manufacturing supply chain enterprises that pay attention to the matching of technical parameters of transmission accessories, need to customize specific number of parts and packaging, and pursue cost-effective transmission system matching.
suitable for the need to purchase high tensile strength, able to cope with outdoor muddy and high load conditions of the transmission chain, and provide to the after-market maintenance upgrade of professional service providers.
suitable for purchasing units that need to purchase thick 520H standard chains with high wear resistance and sufficient stock supply in large quantities to replace standard transmission parts of ordinary original factories.
The inner and outer chain plates of this 520H chain are made of high-purity high-quality 30Mnsi or 45Mn carbon alloy steel, with extremely high yield strength and impact fatigue resistance. The roller and sleeve are made of high-quality steel pipes manufactured by seamless drawing process to ensure uniform roundness and thickness. The pin shaft part is made of 20CrMnMo high-grade alloy steel. Through precision grinding machine processing and surface heat treatment, the technical advantages of wear resistance and tensile resistance of the whole chain are established from the source.
We provide comprehensive pre-sales technical support for B2B customers, including free technical drawing check and sample testing. In terms of after-sales, all ex-factory products enjoy a 12-month quality guarantee. Due to quality problems such as broken chains caused by materials or manufacturing processes, the factory promises to provide full replenishment or refund support.
In conventional road and light off-road environment, the expected service life of this 520H chain can reach more than 15000 kilometers. When using, please ensure that the front and rear sprocket axes are parallel. After driving for 500 kilometers or in rain or muddy roads, use a special chain cleaning agent to clean and spray chain lubricating oil in time.
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.
Motomaxsfr 520H heavy-duty chain is designed with thickened chain plates and anti-fatigue pins. It is specially designed for high torque and harsh off-road environment, with excellent tensile strength and long life. As a source entity factory with 33 years of manufacturing experience, Motomaxsfr have no middlemen to earn the difference, providing you with highly competitive ex-factory prices, mass customization services and efficient delivery speed.
2.2mm
Chain plate thickness
38.5 kN
Tensile strength
15.875mm
Pitch size
compared with standard 520 chain, the thickness of chain plate of this chain is increased to 2.2mm, which improves the overall fatigue strength and compressive deformation resistance by more than 20%, and effectively avoids the risk of chain elongation and fracture during high torque output.
precision stamping and progressive die technology with tolerance controlled within 0.01mm is adopted to ensure that the meshing smoothness of each chain link and sprocket is improved 15%, the running resistance is greatly reduced, and the running noise is reduced to below 78 decibels.
pin shaft surface after deep carbon-nitrogen co-penetration and hardening heat treatment, surface hardness of HV650 or more, even in the dust off-road or ATV riding environment, can reduce the pin shaft wear, extend the overall service life.
the pin head adopts a high-specification four-point crimping riveting process, and the locking force is 30% higher than that of ordinary riveting. Under high-speed driving and continuous jumping impact, it can effectively prevent the outer chain plate from falling off. Ensure riding safety.
before leaving the factory, special grease immersion and penetration treatment is carried out in a high temperature and high vacuum environment to ensure that the lubricating oil completely fills the gap between the pin shaft and the shaft sleeve, eliminates the stretch adjustment period of the initial driving of the vehicle, and provides out-of-the-box maintenance-free performance.
through finite element analysis to optimize the structure of the inner chain plate, under the premise of ensuring the core mechanical performance and impact resistance, reduce the weight of the chain, reduce the centrifugal force and moment of inertia, so that the power loss of the motor is lower.
| Parameter Items | International Standard Technical Specifications |
| Product Model | 520H Heavy Duty |
| Pitch | 15.875 mm |
| Roller Diameter | 10.16 mm |
| Width between Inner Plates | 6.35 mm |
| Pin Length | 20.20 mm |
| Plate Thickness | 2.20 mm |
| Average Tensile Strength | 38.5 kN |
| Weight per 100 links | 1.04 kg |
| Master Link Type | Clip Type / Snap-on Type |
suitable for overseas regional motorcycle parts wholesale enterprises that need to find long-term stable supply, require factories to have large-volume supply capacity and strict quality control system.
suitable for vehicle manufacturing supply chain enterprises that pay attention to the matching of technical parameters of transmission accessories, need to customize specific number of parts and packaging, and pursue cost-effective transmission system matching.
suitable for the need to purchase high tensile strength, able to cope with outdoor muddy and high load conditions of the transmission chain, and provide to the after-market maintenance upgrade of professional service providers.
suitable for purchasing units that need to purchase thick 520H standard chains with high wear resistance and sufficient stock supply in large quantities to replace standard transmission parts of ordinary original factories.
The inner and outer chain plates of this 520H chain are made of high-purity high-quality 30Mnsi or 45Mn carbon alloy steel, with extremely high yield strength and impact fatigue resistance. The roller and sleeve are made of high-quality steel pipes manufactured by seamless drawing process to ensure uniform roundness and thickness. The pin shaft part is made of 20CrMnMo high-grade alloy steel. Through precision grinding machine processing and surface heat treatment, the technical advantages of wear resistance and tensile resistance of the whole chain are established from the source.
We provide comprehensive pre-sales technical support for B2B customers, including free technical drawing check and sample testing. In terms of after-sales, all ex-factory products enjoy a 12-month quality guarantee. Due to quality problems such as broken chains caused by materials or manufacturing processes, the factory promises to provide full replenishment or refund support.
In conventional road and light off-road environment, the expected service life of this 520H chain can reach more than 15000 kilometers. When using, please ensure that the front and rear sprocket axes are parallel. After driving for 500 kilometers or in rain or muddy roads, use a special chain cleaning agent to clean and spray chain lubricating oil in time.