Chapter 84 is a major category in the HS classification covering mechanical appliances, machinery and their parts, including power machinery, pumps, fans, bearings, transmission devices, machine tools, office equipment, etc. Goods in this chapter usually have power drive or motion conversion functions, but exclude power tools (Chapter 85) and vehicles (Chapter 87). Bearing housings, as basic mechanical components, fall within the scope of Chapter 84. Heading 8483 covers transmission shafts, cranks, bearing housings, bearing shells, gears, friction wheels, flywheels, pulleys, clutches and other transmission devices and their parts. The core of this heading is power transmission and motion support components, excluding rolling bearings themselves (classified under 8482). Bearing housings, as housings that support bearings, are basic components of transmission systems and are therefore classified under this heading. Code 848330 consists of 6 digits: the first 2 digits "84" represent Chapter 84 (mechanical appliances, machinery and their parts); digits 3-4 "83" represent heading 8483 (transmission shafts, bearing housings, gears and other transmission devices); digits 5-6 "30" represent subheading 848330, specifically referring to bearing housings, bearing seats. This subheading is not further subdivided; bearing housings of all materials and uses are classified under this code, but attention must be paid to the distinction from rolling bearings (8482) and plain bearings (8483.10). A bearing housing is a housing specifically used for mounting, supporting and securing bearings, and does not itself contain rolling elements or sliding elements. It is a component of a transmission device, not the bearing itself. Rolling bearings are classified under 8482, plain bearings under 8483.10, and bearing housings as separate parts under 8483.30. If a bearing housing is assembled together with a bearing as one unit, it is classified as a bearing.
Chapter
Chapter 84 is a major category in the HS classification covering mechanical appliances, machinery and their parts, including power machinery, pumps, fans, bearings, transmission devices, machine tools, office equipment, etc. Goods in this chapter usually have power drive or motion conversion functions, but exclude power tools (Chapter 85) and vehicles (Chapter 87). Bearing housings, as basic mechanical components, fall within the scope of Chapter 84.
Heading
Heading 8483 covers transmission shafts, cranks, bearing housings, bearing shells, gears, friction wheels, flywheels, pulleys, clutches and other transmission devices and their parts. The core of this heading is power transmission and motion support components, excluding rolling bearings themselves (classified under 8482). Bearing housings, as housings that support bearings, are basic components of transmission systems and are therefore classified under this heading.
Digit Breakdown
Code 848330 consists of 6 digits: the first 2 digits "84" represent Chapter 84 (mechanical appliances, machinery and their parts); digits 3-4 "83" represent heading 8483 (transmission shafts, bearing housings, gears and other transmission devices); digits 5-6 "30" represent subheading 848330, specifically referring to bearing housings, bearing seats. This subheading is not further subdivided; bearing housings of all materials and uses are classified under this code, but attention must be paid to the distinction from rolling bearings (8482) and plain bearings (8483.10).
Classification Basis
A bearing housing is a housing specifically used for mounting, supporting and securing bearings, and does not itself contain rolling elements or sliding elements. It is a component of a transmission device, not the bearing itself. Rolling bearings are classified under 8482, plain bearings under 8483.10, and bearing housings as separate parts under 8483.30. If a bearing housing is assembled together with a bearing as one unit, it is classified as a bearing.
📝 Declaration Elements
Product Name: Fill in the standard name of the product, such as "bearing housing" or "bearing seat"; avoid using colloquial names or brand names. Use: Describe the application scenario of the bearing housing, such as for electric motors, pumps, reducers or other specific equipment. Material: Indicate the main material of the bearing housing, such as cast iron, cast steel, aluminum alloy, plastic, etc. Brand: Fill in the manufacturer or brand name; if there is no brand, write "no brand". Model: Fill in the product model or specifications, such as inner diameter, outer diameter, mounting hole spacing and other parameters. Whether It Contains a Bearing: Clearly state whether the bearing housing has a bearing installed; if it contains a bearing, it may be classified as a complete set. Processing Method: Describe the manufacturing process, such as casting, forging, machining, welding, etc. Customs declaration example:
Product Name: Bearing Housing
Use: Used for industrial reducers to support transmission shafts
Material: Cast iron HT250
Brand: SKF
Model: SNL 511-609
Whether It Contains a Bearing: No
Processing Method: Casting followed by machining
Specifications: Inner diameter 45mm, outer diameter 120mm, height 80mm
Remarks: None
This declaration clearly explains the product attributes and facilitates customs classification. Confusing bearing housings with rolling bearings and mistakenly classifying them under 8482; in fact, the bearing housing itself does not contain rolling elements. Ignoring the declaration of whether a bearing is included; if a bearing is included, it may be classified as a complete bearing set, affecting the tax rate. Material description is not specific, such as only writing "metal", which may lead to classification disputes or inspection. Use description is too broad, such as "mechanical use", which cannot prove that it is specifically used in a transmission system.
Product Name
Fill in the standard name of the product, such as "bearing housing" or "bearing seat"; avoid using colloquial names or brand names.
⚠️ Mistakenly written as "bearing" or "bearing box", causing classification confusion.
Use
Describe the application scenario of the bearing housing, such as for electric motors, pumps, reducers or other specific equipment.
⚠️ Filling in "mechanical use" is too general and lacks specific equipment information.
Material
Indicate the main material of the bearing housing, such as cast iron, cast steel, aluminum alloy, plastic, etc.
⚠️ Only writing "metal" or "iron" without distinguishing the specific alloy type.
Brand
Fill in the manufacturer or brand name; if there is no brand, write "no brand".
⚠️ Confusing brand with model, or filling in the trader's name instead of the manufacturer.
Model
Fill in the product model or specifications, such as inner diameter, outer diameter, mounting hole spacing and other parameters.
⚠️ Incomplete model entry, or inconsistent with the drawings.
Whether It Contains a Bearing
Clearly state whether the bearing housing has a bearing installed; if it contains a bearing, it may be classified as a complete set.
⚠️ Failure to declare whether it contains a bearing, leading to classification errors.
Processing Method
Describe the manufacturing process, such as casting, forging, machining, welding, etc.
⚠️ Ignoring the processing method, which affects origin and classification determination.
Example： Customs declaration example:
Product Name: Bearing Housing
Use: Used for industrial reducers to support transmission shafts
Material: Cast iron HT250
Brand: SKF
Model: SNL 511-609
Whether It Contains a Bearing: No
Processing Method: Casting followed by machining
Specifications: Inner diameter 45mm, outer diameter 120mm, height 80mm
Remarks: None
This declaration clearly explains the product attributes and facilitates customs classification.
Common Mistakes：
Confusing bearing housings with rolling bearings and mistakenly classifying them under 8482; in fact, the bearing housing itself does not contain rolling elements.
Ignoring the declaration of whether a bearing is included; if a bearing is included, it may be classified as a complete bearing set, affecting the tax rate.
Material description is not specific, such as only writing "metal", which may lead to classification disputes or inspection.
Use description is too broad, such as "mechanical use", which cannot prove that it is specifically used in a transmission system.
🎯 Classification Logic
Core basis for classification: A bearing housing is a supporting housing independent of the bearing, does not have rolling or sliding functions, and is only used to mount and secure bearings. According to HS notes, heading 8483 includes bearing housings, bearing shells and their parts. If a bearing housing is assembled together with a bearing, it is classified as a bearing (8482 or 8483.10). If the bearing housing contains a plain bearing bushing, it may be classified under 8483.30 or 8483.90. Material and processing method do not affect the subheading, but it must be ensured that it does not constitute a complete machine of another heading. 848210 Rolling Bearings: Rolling bearings contain balls or rollers and are independent functional components; a bearing housing is only its outer shell and does not contain rolling elements. 848310 Transmission Shafts: Transmission shafts transmit torque and are moving parts; bearing housings are stationary supporting parts and do not transmit power. 848320 Bearing Housings (Containing Rolling Bearings): This code refers to bearing housings with rolling bearings installed, while 848330 refers only to housings without bearings installed. 848390 Parts of Transmission Devices: 848390 covers parts of other transmission devices, such as gearbox housings; bearing housings are specifically used to support bearings. 732690 Other Articles of Iron or Steel: If a bearing housing is not clearly used for mechanical transmission, it may be mistakenly classified as an article of iron or steel, but according to its use it should be classified under 8483. Does it contain no rolling elements or sliding elements? Is it specifically used for mounting and supporting bearings? Is it not assembled together with a bearing as one unit? Does the material not affect classification? Does its use belong to a transmission system?
Basis
Core basis for classification: A bearing housing is a supporting housing independent of the bearing, does not have rolling or sliding functions, and is only used to mount and secure bearings. According to HS notes, heading 8483 includes bearing housings, bearing shells and their parts. If a bearing housing is assembled together with a bearing, it is classified as a bearing (8482 or 8483.10). If the bearing housing contains a plain bearing bushing, it may be classified under 8483.30 or 8483.90. Material and processing method do not affect the subheading, but it must be ensured that it does not constitute a complete machine of another heading.
Confused Codes：
848210 - Rolling Bearings
Rolling bearings contain balls or rollers and are independent functional components; a bearing housing is only its outer shell and does not contain rolling elements.
848310 - Transmission Shafts
Transmission shafts transmit torque and are moving parts; bearing housings are stationary supporting parts and do not transmit power.
848320 - Bearing Housings (Containing Rolling Bearings)
This code refers to bearing housings with rolling bearings installed, while 848330 refers only to housings without bearings installed.
848390 - Parts of Transmission Devices
848390 covers parts of other transmission devices, such as gearbox housings; bearing housings are specifically used to support bearings.
732690 - Other Articles of Iron or Steel
If a bearing housing is not clearly used for mechanical transmission, it may be mistakenly classified as an article of iron or steel, but according to its use it should be classified under 8483.
Self-Check：
✓ Does it contain no rolling elements or sliding elements?
✓ Is it specifically used for mounting and supporting bearings?
✓ Is it not assembled together with a bearing as one unit?
✓ Does the material not affect classification?
✓ Does its use belong to a transmission system?
❓ FAQ
What is the difference between a bearing housing and a bearing seat? Are the HS codes the same? Bearing housings and bearing seats usually refer to the same type of product, both being housings used to support bearings. In the HS code, both are classified under 848330. However, if the bearing seat has a rolling bearing installed, it is classified under 848320. The difference lies in whether a bearing is included. How can it be determined whether a bearing housing should be classified under 848330? First confirm that the product is an independent housing that does not contain rolling elements or sliding elements; second confirm that it is specifically used for mounting bearings and is a part of a transmission system. If these conditions are met, it is classified under 848330. If it contains a bearing, it is classified as a bearing. Does the material of a bearing housing affect the HS code? No. HS code 848330 does not distinguish materials; whether it is cast iron, cast steel, aluminum alloy or plastic, it is classified under the same code. However, material may affect rules of origin or tariff rates and must be accurately filled in at declaration. How should it be declared if a bearing housing is imported together with a bearing? If the bearing is already installed in the bearing housing, it should be regarded as a complete bearing seat and classified under 848320 (containing rolling bearings) or 848330 (containing plain bearings). If packaged separately, they are classified separately: bearing housing 848330, bearing 8482 or 8483. What are common errors in the declaration elements for bearing housings? Common errors include: the product name mistakenly written as "bearing", failure to declare whether a bearing is included, general material description, and non-specific use description. These errors may cause customs to question the classification and prolong customs clearance. How are 848330 and 848390 distinguished? 848330 specifically refers to bearing housings and bearing seats; 848390 covers parts of other transmission devices, such as gearbox housings, clutch parts, etc. The key difference lies in use: bearing housings are specifically used to support bearings, while 848390 parts are used for other transmission functions. What documents are required to import bearing housings? Usually a packing list, invoice, contract, bill of lading and declaration element sheet are required. If requested by customs, product drawings, material certificates, use statements, etc. may also be required. It is advisable to prepare them in advance to expedite customs clearance. How can the tariff rate for bearing housings be checked? Tariff rates vary by country, trade agreement and origin. The latest rates can be obtained through customs official websites, HS code query tools, or by consulting a customs broker. Note that rates may change; at declaration, the customs system shall prevail.
Q: What is the difference between a bearing housing and a bearing seat? Are the HS codes the same?
A: Bearing housings and bearing seats usually refer to the same type of product, both being housings used to support bearings. In the HS code, both are classified under 848330. However, if the bearing seat has a rolling bearing installed, it is classified under 848320. The difference lies in whether a bearing is included.
Q: How can it be determined whether a bearing housing should be classified under 848330?
A: First confirm that the product is an independent housing that does not contain rolling elements or sliding elements; second confirm that it is specifically used for mounting bearings and is a part of a transmission system. If these conditions are met, it is classified under 848330. If it contains a bearing, it is classified as a bearing.
Q: Does the material of a bearing housing affect the HS code?
A: No. HS code 848330 does not distinguish materials; whether it is cast iron, cast steel, aluminum alloy or plastic, it is classified under the same code. However, material may affect rules of origin or tariff rates and must be accurately filled in at declaration.
Q: How should it be declared if a bearing housing is imported together with a bearing?
A: If the bearing is already installed in the bearing housing, it should be regarded as a complete bearing seat and classified under 848320 (containing rolling bearings) or 848330 (containing plain bearings). If packaged separately, they are classified separately: bearing housing 848330, bearing 8482 or 8483.
Q: What are common errors in the declaration elements for bearing housings?
A: Common errors include: the product name mistakenly written as "bearing", failure to declare whether a bearing is included, general material description, and non-specific use description. These errors may cause customs to question the classification and prolong customs clearance.
Q: How are 848330 and 848390 distinguished?
A: 848330 specifically refers to bearing housings and bearing seats; 848390 covers parts of other transmission devices, such as gearbox housings, clutch parts, etc. The key difference lies in use: bearing housings are specifically used to support bearings, while 848390 parts are used for other transmission functions.
Q: What documents are required to import bearing housings?
A: Usually a packing list, invoice, contract, bill of lading and declaration element sheet are required. If requested by customs, product drawings, material certificates, use statements, etc. may also be required. It is advisable to prepare them in advance to expedite customs clearance.
Q: How can the tariff rate for bearing housings be checked?
A: Tariff rates vary by country, trade agreement and origin. The latest rates can be obtained through customs official websites, HS code query tools, or by consulting a customs broker. Note that rates may change; at declaration, the customs system shall prevail.
⚠️ 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.