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428h Motorcycle Chain Factory Direct Price
Motomaxsfr 428H motorcycle chain is specially designed for high torque electric motorcycles and light fuel vehicles. 2.03mm thick chain plates and precision heat treatment process are adopted to increase the tensile strength by more than 15%. Motomaxsfr is a source manufacturer with 33 years of manufacturing history. It eliminates the middleman link and directly supplies bulk purchase orders to provide you with highly competitive ex-factory prices and faster delivery speeds.
12.70mm Pitch
8.51mm Roller diameter
7.85mm Inner width
2.03mm Chain plate thickness
23.4 kN Tensile strength
200 ml Applicable displacement
clip type joint Joint type
0.79kg Weight per meter
Our products
The 428H motorcycle chain is the 1 weighted transmission device used to accurately transmit the power of a motor or engine to the rear wheels. It is made of high-quality 30CrMnTi alloy steel and is widely used in light locomotives and high-performance electric motorcycles.
428h motorcycle chain Features
Thickened chain plate impact resistance
The thickness of the chain plate of the 428H chain is up to 2.03mm, which is significantly enhanced compared with the standard type. It can withstand more violent instantaneous explosive force and effectively prevent chain deformation during complex road conditions or high torque start of the motor.
Cold-extruded seamless sleeve
The seamless sleeve made by micron-level cold extrusion process has extremely high roundness, which significantly reduces friction loss and mechanical noise during operation, and ensures that the vehicle remains quiet and quiet at high speeds. Smooth.
Surface carbon-nitrogen co-penetration pin shaft
pin shaft after advanced carbon-nitrogen co-penetration heat treatment, surface hardness of HV750 or more, even in a dusty environment can also show excellent wear resistance, greatly reducing the chain elongation caused by wear.
Vacuum high-temperature oil immersion technology
the chain is fully vacuum-immersed before leaving the factory to ensure that 100% of high-performance lubricating oil penetrates into the pin shaft and sleeve, forming a lasting oil film, preventing corrosion and improving the transmission efficiency to a new height.
Factory pre-tensile stress treatment
Each Motomaxsfr chain undergoes a strict pre-tensile test after assembly to eliminate the initial stress in advance, which means that the end user basically does not need to adjust the tension frequently after installation, reducing maintenance costs.
High precision alloy steel material
selection of 30CrMnTi alloy steel, with multi-stage quenching process, so that the chain has both high hardness and excellent fatigue toughness, and completely solve the hidden danger of chain fracture under high strength and heavy load operation.
428h motorcycle chain structured detailed parameter table
| Parameter name | Specifications (Metric/Standard) | Performance characteristics |
| Product Model | 428H (Thickened Type) | Enhanced structural design |
| Pitch (P) | 12.70mm | Conforms to international standards |
| Roller diameter (d1) | 8.51mm | High-precision seamless rollers |
| Inner section width (b1) | 7.85mm | Compatible with standard 428 sprockets |
| Pin diameter (d2) | 4.45mm | Reinforced carbon alloy steel |
| Pin length (L) | 18.80mm | Extended pin design |
| Chain plate thickness (T) | 2.03mm | 15% additional thickness reinforcement |
| Average tensile strength | 23.4kN | Far exceeding industry standard requirements |
| Maximum compatible speed | 8000rpm | Meets high-frequency power requirements |
428h motorcycle chain for people
City electric motorcycle OEM manufacturers
suitable for the pursuit of high endurance and quiet performance of intelligent electric motorcycles, to provide them with a standardized transmission scheme to meet the durability requirements of the vehicle, to help products stand out in the high-end market.
Light off-road locomotive manufacturing plant
For light off-road environments such as forest roads and venues, 428H can provide excellent impact resistance and meet the demanding requirements of professional players on the reliability of power systems.
Takeaway delivery fleet operators
Under high-frequency use and heavy-load conditions, long-life and low-maintenance Motomaxsfr chains can greatly reduce the operating costs of bicycles and are ideal for logistics and rental fleets.
International spare parts wholesale traders
provide international certified, cost-effective parts for overseas buyers seeking high-quality domestic alternatives to meet the huge demand for high-performance replacement chains in the aftermarket.
428h motorcycle chain raw materials/materials
This product is mainly made of 30CrMnTi high performance alloy steel. The pin shaft is made of high-carbon alloy steel and is treated with multi-stage carbon-nitrogen co-penetration to obtain extremely high surface hardness and wear resistance, and the sleeve and roller are formed by precision cold-drawn steel pipe to ensure seamless and compact structure. The chain plate is made of high-strength cold-rolled alloy steel strip, which has excellent tensile stress distribution after precision stamping and isothermal quenching to ensure no fatigue or fracture under long-term load.428h motorcycle chain life and after-sales service
Pre-sales and after-sales service
We provide professional OEM selection consultation, and match the best chain drive scheme according to your motor curve. The after-sales guarantee covers a complete quality traceability system, responds to technical inquiries within 24 hours, and provides worry-free replacement support for quality defects for all batch products.
Life expectancy and maintenance
Under normal driving and regular maintenance conditions, the expected service life of the Motomaxsfr 428H can reach 25,000 kilometers or more. The instructions for use recommend cleaning and spraying professional lubricating oil every 500 kilometers, and keeping the chain sag between 20 and 30mm.
factory and certificate
certificate
FAQ And Contact Us
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.
What does the letter in 428H mean?
The letter H stands for thickened type, which means that the chain has thicker chain plates than standard 428 chains and has higher tensile strength and impact resistance.
Can the 428H chain directly replace the ordinary 428 chain?
Yes. The 428H is consistent with the pitch and roller width of the standard 428, and can share the same sprocket. It is an ideal upgrade scheme to improve the transmission strength.
Why is the electric motor more recommended to use 428H instead of the standard type?
The torque output of the motor is very direct, and the instantaneous impact force is large. The thickening design of 428H can better cope with this high torque and reduce chain stretching deformation.
How to judge that the chain has reached the replacement cycle?
When the chain elongation exceeds 2% or there is obvious loosening of internodes, rusty dead joints and abnormal noise during operation, it indicates that the service limit has been reached.
Was the Motomaxsfr chain oiled before leaving the factory?
Yes. All chains are treated with vacuum and high temperature oil immersion before leaving the factory to ensure that the internal pin shaft is fully lubricated and can be installed and used by users out of the box.
Can you customize the production according to the specific number of nodes?
Yes. As a source factory, Motomaxsfr support customized chains of different lengths and number of links according to the specific needs of OEM customers.
Please feel free to contact us. We look forward to hearing from you.
428h Motorcycle Chain Factory Direct Price
Motomaxsfr 428H motorcycle chain is specially designed for high torque electric motorcycles and light fuel vehicles. 2.03mm thick chain plates and precision heat treatment process are adopted to increase the tensile strength by more than 15%. Motomaxsfr is a source manufacturer with 33 years of manufacturing history. It eliminates the middleman link and directly supplies bulk purchase orders to provide you with highly competitive ex-factory prices and faster delivery speeds.
12.70mm
Pitch
8.51mm
Roller diameter
7.85mm
Inner width
428h motorcycle chain Features
Thickened chain plate impact resistance
The thickness of the chain plate of the 428H chain is up to 2.03mm, which is significantly enhanced compared with the standard type. It can withstand more violent instantaneous explosive force and effectively prevent chain deformation during complex road conditions or high torque start of the motor.
Cold-extruded seamless sleeve
The seamless sleeve made by micron-level cold extrusion process has extremely high roundness, which significantly reduces friction loss and mechanical noise during operation, and ensures that the vehicle remains quiet and quiet at high speeds. Smooth.
Surface carbon-nitrogen co-penetration pin shaft
pin shaft after advanced carbon-nitrogen co-penetration heat treatment, surface hardness of HV750 or more, even in a dusty environment can also show excellent wear resistance, greatly reducing the chain elongation caused by wear.
Vacuum high-temperature oil immersion technology
the chain is fully vacuum-immersed before leaving the factory to ensure that 100% of high-performance lubricating oil penetrates into the pin shaft and sleeve, forming a lasting oil film, preventing corrosion and improving the transmission efficiency to a new height.
Factory pre-tensile stress treatment
Each Motomaxsfr chain undergoes a strict pre-tensile test after assembly to eliminate the initial stress in advance, which means that the end user basically does not need to adjust the tension frequently after installation, reducing maintenance costs.
High precision alloy steel material
selection of 30CrMnTi alloy steel, with multi-stage quenching process, so that the chain has both high hardness and excellent fatigue toughness, and completely solve the hidden danger of chain fracture under high strength and heavy load operation.
428h motorcycle chain structured detailed parameter table
| Parameter name | Specifications (Metric/Standard) | Performance characteristics |
| Product Model | 428H (Thickened Type) | Enhanced structural design |
| Pitch (P) | 12.70mm | Conforms to international standards |
| Roller diameter (d1) | 8.51mm | High-precision seamless rollers |
| Inner section width (b1) | 7.85mm | Compatible with standard 428 sprockets |
| Pin diameter (d2) | 4.45mm | Reinforced carbon alloy steel |
| Pin length (L) | 18.80mm | Extended pin design |
| Chain plate thickness (T) | 2.03mm | 15% additional thickness reinforcement |
| Average tensile strength | 23.4kN | Far exceeding industry standard requirements |
| Maximum compatible speed | 8000rpm | Meets high-frequency power requirements |
428h motorcycle chain for people
City electric motorcycle OEM manufacturers
suitable for the pursuit of high endurance and quiet performance of intelligent electric motorcycles, to provide them with a standardized transmission scheme to meet the durability requirements of the vehicle, to help products stand out in the high-end market.
Light off-road locomotive manufacturing plant
For light off-road environments such as forest roads and venues, 428H can provide excellent impact resistance and meet the demanding requirements of professional players on the reliability of power systems.
Takeaway delivery fleet operators
Under high-frequency use and heavy-load conditions, long-life and low-maintenance Motomaxsfr chains can greatly reduce the operating costs of bicycles and are ideal for logistics and rental fleets.
International spare parts wholesale traders
provide international certified, cost-effective parts for overseas buyers seeking high-quality domestic alternatives to meet the huge demand for high-performance replacement chains in the aftermarket.
428h motorcycle chain raw materials/materials
This product is mainly made of 30CrMnTi high performance alloy steel. The pin shaft is made of high-carbon alloy steel and is treated with multi-stage carbon-nitrogen co-penetration to obtain extremely high surface hardness and wear resistance, and the sleeve and roller are formed by precision cold-drawn steel pipe to ensure seamless and compact structure. The chain plate is made of high-strength cold-rolled alloy steel strip, which has excellent tensile stress distribution after precision stamping and isothermal quenching to ensure no fatigue or fracture under long-term load.428h motorcycle chain life and after-sales service
Pre-sales and after-sales service
Life expectancy and maintenance
Know Us and Contact Us
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FAQ
What does the letter in 428H mean?
The letter H stands for thickened type, which means that the chain has thicker chain plates than standard 428 chains and has higher tensile strength and impact resistance.
Can the 428H chain directly replace the ordinary 428 chain?
Yes. The 428H is consistent with the pitch and roller width of the standard 428, and can share the same sprocket. It is an ideal upgrade scheme to improve the transmission strength.
Why is the electric motor more recommended to use 428H instead of the standard type?
The torque output of the motor is very direct, and the instantaneous impact force is large. The thickening design of 428H can better cope with this high torque and reduce chain stretching deformation.
How to judge that the chain has reached the replacement cycle?
When the chain elongation exceeds 2% or there is obvious loosening of internodes, rusty dead joints and abnormal noise during operation, it indicates that the service limit has been reached.
Was the Motomaxsfr chain oiled before leaving the factory?
Yes. All chains are treated with vacuum and high temperature oil immersion before leaving the factory to ensure that the internal pin shaft is fully lubricated and can be installed and used by users out of the box.
Can you customize the production according to the specific number of nodes?
Yes. As a source factory, Motomaxsfr support customized chains of different lengths and number of links according to the specific needs of OEM customers.