Chapter 40 covers vulcanized rubber and articles thereof, including raw materials such as natural rubber, synthetic rubber, and reclaimed rubber, as well as various semi-finished and finished products. This chapter ranges from rubber in primary forms to rubber articles for final use, such as tires, hoses, transmission belts, seals, etc. However, certain rubber articles may be classified under other chapters depending on their use or material, such as rubber footwear under Chapter 64 and rubber toys under Chapter 95. Heading 4010 specifically covers conveyor belts or transmission belts of vulcanized rubber, including belting. Such products are used for mechanical power transmission or material conveyance and are key components of industrial equipment. Under this heading, they are further subdivided according to the cross-sectional shape and use of the belt, such as trapezoidal cross-section V-belts, synchronous belts, etc. The first 2 digits 40 indicate Chapter 40 (Rubber and articles thereof); digits 3-4, 10, indicate heading 4010 (conveyor belts or transmission belts of vulcanized rubber); digits 5-6, 36, indicate subheading 401036, specifically endless synchronous belts, with an outside circumference of 150 cm to 198 cm. Synchronous belts have a toothed profile and are used for precise synchronous transmission. The goods are endless synchronous belts of vulcanized rubber, with an outside circumference of 150-198 cm, meeting the definition of synchronous belts under heading 4010. The difference from adjacent codes such as 401031 (outside circumference 60-150 cm) and 401032 (trapezoidal cross-section V-belts with outside circumference 150-198 cm) lies in the circumference range and belt type.
Chapter
Chapter 40 covers vulcanized rubber and articles thereof, including raw materials such as natural rubber, synthetic rubber, and reclaimed rubber, as well as various semi-finished and finished products. This chapter ranges from rubber in primary forms to rubber articles for final use, such as tires, hoses, transmission belts, seals, etc. However, certain rubber articles may be classified under other chapters depending on their use or material, such as rubber footwear under Chapter 64 and rubber toys under Chapter 95.
Heading
Heading 4010 specifically covers conveyor belts or transmission belts of vulcanized rubber, including belting. Such products are used for mechanical power transmission or material conveyance and are key components of industrial equipment. Under this heading, they are further subdivided according to the cross-sectional shape and use of the belt, such as trapezoidal cross-section V-belts, synchronous belts, etc.
Digit Breakdown
The first 2 digits 40 indicate Chapter 40 (Rubber and articles thereof); digits 3-4, 10, indicate heading 4010 (conveyor belts or transmission belts of vulcanized rubber); digits 5-6, 36, indicate subheading 401036, specifically endless synchronous belts, with an outside circumference of 150 cm to 198 cm. Synchronous belts have a toothed profile and are used for precise synchronous transmission.
Classification Basis
The goods are endless synchronous belts of vulcanized rubber, with an outside circumference of 150-198 cm, meeting the definition of synchronous belts under heading 4010. The difference from adjacent codes such as 401031 (outside circumference 60-150 cm) and 401032 (trapezoidal cross-section V-belts with outside circumference 150-198 cm) lies in the circumference range and belt type.
📝 Declaration Elements
Product name: The specific name of the declared goods should be accurately described as "endless synchronous belts of vulcanized rubber," avoiding colloquial or vague names. Material: State the type of rubber, such as natural rubber, nitrile rubber, neoprene rubber, etc., and indicate whether it is vulcanized. Structure: Describe the cross-sectional shape of the belt and the reinforcing material; for synchronous belts, the tooth profile and cord material (such as steel wire, aramid) should be indicated. Outside circumference: Accurately measure and declare the outside circumference in centimeters, ensuring it is within the range of 150-198 cm. Brand: Declare the brand name; if there is no brand, state "no brand." Model: Declare the product model to facilitate identification of specific specifications. Use: Explain the specific use, such as synchronous transmission for automobile engines, industrial machinery, etc. Product name: endless synchronous belts of vulcanized rubber; Material: neoprene rubber, with built-in steel wire reinforcement; Structure: toothed synchronous belt, trapezoidal teeth; Outside circumference: 165 cm; Brand: XX; Model: XX-165; Use: used for automotive engine timing transmission. Inaccurate measurement of outside circumference, not within the range of 150-198 cm. Material not indicated as vulcanized, which may be misclassified as unvulcanized rubber. Unclear structural description, failing to specify tooth profile and reinforcing material. Brand and model declared falsely or missing.
Product name
The specific name of the declared goods should be accurately described as "endless synchronous belts of vulcanized rubber," avoiding colloquial or vague names.
⚠️ Misreporting as overly general names such as "rubber belts" or "transmission belts."
Material
State the type of rubber, such as natural rubber, nitrile rubber, neoprene rubber, etc., and indicate whether it is vulcanized.
⚠️ Writing only "rubber" without specifying the specific type and vulcanization status.
Structure
Describe the cross-sectional shape of the belt and the reinforcing material; for synchronous belts, the tooth profile and cord material (such as steel wire, aramid) should be indicated.
⚠️ Omitting the tooth profile description or failing to specify the reinforcing material.
Outside circumference
Accurately measure and declare the outside circumference in centimeters, ensuring it is within the range of 150-198 cm.
⚠️ Incorrect units (such as millimeters), or inaccurate measurement leading to classification errors.
Brand
Declare the brand name; if there is no brand, state "no brand."
⚠️ Confusing brand with model, or failing to declare truthfully.
Model
Declare the product model to facilitate identification of specific specifications.
⚠️ Incomplete or incorrect model entry.
Use
Explain the specific use, such as synchronous transmission for automobile engines, industrial machinery, etc.
⚠️ Use description is too broad, such as "for transmission."
Example： Product name: endless synchronous belts of vulcanized rubber; Material: neoprene rubber, with built-in steel wire reinforcement; Structure: toothed synchronous belt, trapezoidal teeth; Outside circumference: 165 cm; Brand: XX; Model: XX-165; Use: used for automotive engine timing transmission.
Common Mistakes：
Inaccurate measurement of outside circumference, not within the range of 150-198 cm.
Material not indicated as vulcanized, which may be misclassified as unvulcanized rubber.
Unclear structural description, failing to specify tooth profile and reinforcing material.
Brand and model declared falsely or missing.
🎯 Classification Logic
The core basis for classification is: 1. The material is vulcanized rubber; 2. The product is an endless synchronous belt with a toothed structure; 3. The outside circumference is between 150-198 cm. All three conditions must be met simultaneously to be classified under 401036. 401031 Endless synchronous belts of vulcanized rubber, outside circumference 60-150 cm: The outside circumference range is different; 401031 is 60-150 cm, while 401036 is 150-198 cm. 401032 Endless trapezoidal cross-section V-belts of vulcanized rubber, outside circumference 150-198 cm: The belt type is different; 401032 is trapezoidal cross-section V-belts, while 401036 is synchronous belts. 401034 Endless synchronous belts of vulcanized rubber, outside circumference 198-250 cm: The outside circumference range is different; 401034 is 198-250 cm. 401039 Other transmission belts of vulcanized rubber: 401039 covers other transmission belts not elsewhere specified, while 401036 covers synchronous belts within a specific circumference range. Confirm the material is vulcanized rubber. Confirm the belt is an endless synchronous belt. Measure whether the outside circumference is within 150-198 cm. Check whether there is reinforcing material and its type. Verify whether declaration elements such as brand and model are complete.
Basis
The core basis for classification is: 1. The material is vulcanized rubber; 2. The product is an endless synchronous belt with a toothed structure; 3. The outside circumference is between 150-198 cm. All three conditions must be met simultaneously to be classified under 401036.
Confused Codes：
401031 - Endless synchronous belts of vulcanized rubber, outside circumference 60-150 cm
The outside circumference range is different; 401031 is 60-150 cm, while 401036 is 150-198 cm.
401032 - Endless trapezoidal cross-section V-belts of vulcanized rubber, outside circumference 150-198 cm
The belt type is different; 401032 is trapezoidal cross-section V-belts, while 401036 is synchronous belts.
401034 - Endless synchronous belts of vulcanized rubber, outside circumference 198-250 cm
The outside circumference range is different; 401034 is 198-250 cm.
401039 - Other transmission belts of vulcanized rubber
401039 covers other transmission belts not elsewhere specified, while 401036 covers synchronous belts within a specific circumference range.
Self-Check：
✓ Confirm the material is vulcanized rubber.
✓ Confirm the belt is an endless synchronous belt.
✓ Measure whether the outside circumference is within 150-198 cm.
✓ Check whether there is reinforcing material and its type.
✓ Verify whether declaration elements such as brand and model are complete.
❓ FAQ
How can I check the import tariff rate for 401036? You can check the latest tariff rate by entering HS code 401036 on the General Administration of Customs website, China International Trade Single Window, or third-party tariff query platforms, and selecting the destination country and country of origin. Note that tariff rates may vary due to trade agreements. What is the difference in classification between synchronous belts and V-belts? Synchronous belts have a toothed profile and are used for precise synchronous transmission, classified under subheadings such as 401031, 401034, and 401036; V-belts have a trapezoidal cross-section and transmit power by friction, classified under subheadings such as 401032 and 401033. Classification must be distinguished based on cross-sectional shape. Can measurement error in outside circumference lead to a change in classification? Yes, outside circumference is a key indicator for subheading division. If measurement error causes the circumference to fall into an adjacent range (for example, 150 cm is mistakenly measured as 149 cm), it may be classified under a different subheading. Accurate measurement and record retention are recommended. If the outside circumference of a synchronous belt is exactly 150 cm, which code should it be classified under? According to coding rules, 401031 covers 60-150 cm (usually including 150 cm), and 401036 covers 150-198 cm (usually excluding 150 cm). However, specific customs classification decisions should be consulted, and actual measurement and official interpretation should prevail. Is it necessary to provide drawings or photos of the synchronous belt when declaring? Usually not required, but customs may request them to confirm classification. It is advisable to prepare product specification sheets, drawings, and other materials for inspection. How to distinguish 401036 from 401039? 401036 specifically refers to endless synchronous belts with an outside circumference of 150-198 cm; 401039 covers other transmission belts of vulcanized rubber not elsewhere specified. If the outside circumference of a synchronous belt is not within 150-198 cm, it may be classified under another subheading or 401039. For cross-border e-commerce sales of synchronous belts, how to determine the HS code? It must be determined based on product material, type, outside circumference, etc. You may refer to customs classification guidelines or consult a customs broker. Ensure accurate declaration to avoid customs clearance issues. When classifying synchronous belts, does the reinforcing material affect the HS code? Reinforcing materials (such as steel wire, aramid) do not affect subheading division, but must be indicated in the declaration elements. Classification is mainly based on rubber material, belt type, and outside circumference.
Q: How can I check the import tariff rate for 401036?
A: You can check the latest tariff rate by entering HS code 401036 on the General Administration of Customs website, China International Trade Single Window, or third-party tariff query platforms, and selecting the destination country and country of origin. Note that tariff rates may vary due to trade agreements.
Q: What is the difference in classification between synchronous belts and V-belts?
A: Synchronous belts have a toothed profile and are used for precise synchronous transmission, classified under subheadings such as 401031, 401034, and 401036; V-belts have a trapezoidal cross-section and transmit power by friction, classified under subheadings such as 401032 and 401033. Classification must be distinguished based on cross-sectional shape.
Q: Can measurement error in outside circumference lead to a change in classification?
A: Yes, outside circumference is a key indicator for subheading division. If measurement error causes the circumference to fall into an adjacent range (for example, 150 cm is mistakenly measured as 149 cm), it may be classified under a different subheading. Accurate measurement and record retention are recommended.
Q: If the outside circumference of a synchronous belt is exactly 150 cm, which code should it be classified under?
A: According to coding rules, 401031 covers 60-150 cm (usually including 150 cm), and 401036 covers 150-198 cm (usually excluding 150 cm). However, specific customs classification decisions should be consulted, and actual measurement and official interpretation should prevail.
Q: Is it necessary to provide drawings or photos of the synchronous belt when declaring?
A: Usually not required, but customs may request them to confirm classification. It is advisable to prepare product specification sheets, drawings, and other materials for inspection.
Q: How to distinguish 401036 from 401039?
A: 401036 specifically refers to endless synchronous belts with an outside circumference of 150-198 cm; 401039 covers other transmission belts of vulcanized rubber not elsewhere specified. If the outside circumference of a synchronous belt is not within 150-198 cm, it may be classified under another subheading or 401039.
Q: For cross-border e-commerce sales of synchronous belts, how to determine the HS code?
A: It must be determined based on product material, type, outside circumference, etc. You may refer to customs classification guidelines or consult a customs broker. Ensure accurate declaration to avoid customs clearance issues.
Q: When classifying synchronous belts, does the reinforcing material affect the HS code?
A: Reinforcing materials (such as steel wire, aramid) do not affect subheading division, but must be indicated in the declaration elements. Classification is mainly based on rubber material, belt type, and outside circumference.
⚠️ Disclaimer: HS code classification, declaration elements, tariff rates and regulatory conditions on this page are for reference only and do not constitute legal advice on customs classification. Tariff rates and regulations are subject to change; the latest announcements from the General Administration of Customs and on-site determinations shall prevail. Please consult professional customs brokers or customs authorities before import/export.