| HS Code | Product Description | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
|---|---|---|---|---|---|---|
| 8483608000 | Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof: Clutches and shaft couplings (including universal joints): Other | Doc | 57.8% | CN | US | 2025-05-12 |
| 8483908080 | Transmission shafts (including camshafts and crankshafts) and cranks; bearing housings, housed bearings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints); parts thereof: Toothed wheels, chain sprockets and other transmission elements presented separately; parts: Other: Other Other | Doc | 57.8% | CN | US | 2025-05-12 |
| 8487900080 | Machinery parts, not containing electrical connectors, insulators, coils, contacts or other electrical features, and not specified or included elsewhere in this chapter: Other Other | Doc | 83.9% | CN | US | 2025-05-12 |
| 4010313000 | Conveyor or transmission belts or belting, of vulcanized rubber: Transmission belts or belting: Endless transmission belts of trapezoidal cross section (V-belts),V-ribbed, of an outside circumference exceeding 60 cm but not exceeding 180 cm: Combined with textile materials | Doc | 58.4% | CN | US | 2025-05-12 |
| 4010391000 | Conveyor or transmission belts or belting, of vulcanized rubber: Transmission belts or belting: Other: Of trapezoidal cross section (V-belts and belting): Combined with textile materials | Doc | 58.4% | CN | US | 2025-05-12 |
| 4008294000 | Plates, sheets, strip, rods and profile shapes, of vulcanized rubber other than hard rubber: Of noncellular rubber: Other: Other | Doc | 57.9% | CN | US | 2025-05-12 |
| 4008292000 | Plates, sheets, strip, rods and profile shapes, of vulcanized rubber other than hard rubber: Of noncellular rubber: Other: Profile shapes | Doc | 57.9% | CN | US | 2025-05-12 |
V-Belt K28
A V-belt K28 is a power transmission belt commonly used in various mechanical systems. This entry details its material composition, purpose, function, usage scenarios, and common types.
Material
V-belts, including the K28 variant, are predominantly constructed from rubber compounds reinforced with tensile cords.
- Rubber Compound: Typically, these belts utilize a blend of natural rubber, synthetic rubbers (such as EPDM, Chloroprene, or Polyurethane), carbon black, and other additives to achieve desired flexibility, durability, and resistance to abrasion, oil, and temperature variations.
- Tensile Cords: The cords embedded within the rubber provide the belt’s strength. Common materials include polyester, aramid (e.g., Kevlar), or nylon. Aramid cords offer higher strength and lower stretch compared to polyester.
- Cover Fabric: A fabric layer, often nylon or polyester, encases the rubber compound to protect the cords and provide grip.
Purpose & Function
The primary purpose of a V-belt K28 is to transmit power efficiently from a driving pulley to a driven pulley.
- Power Transmission: The belt wraps around the pulleys, and the friction between the belt and pulley surfaces transfers rotational motion and torque.
- Speed Ratio Adjustment: By using pulleys of different diameters, V-belts can alter the speed and torque characteristics of the system. A smaller driven pulley increases speed but reduces torque, and vice versa.
- Shock Absorption: The belt’s flexibility allows it to absorb some shock and vibration, protecting connected machinery.
- Quiet Operation: Compared to gears or chains, V-belts generally operate more quietly.
Usage Scenarios
V-belts K28 are found in a wide array of applications:
- Automotive: Used in engines for driving accessories like alternators, power steering pumps, air conditioning compressors, and water pumps.
- Industrial Machinery: Common in conveyors, compressors, pumps, fans, and various manufacturing equipment.
- HVAC Systems: Used in air handling units, fans, and pumps.
- Agricultural Equipment: Found in tractors, combines, and other farm machinery.
- Home Appliances: Used in washing machines, dryers, and other appliances.
Common Types & Standards
The "K" designation refers to a specific profile and cross-sectional dimensions according to standardized systems. The "28" indicates the nominal top width of the belt in millimeters.
- Classical V-Belts (K Section): These are traditional V-belts with a wide cross-section. The K section is a common standard.
- Narrow V-Belts: Offer similar power transmission capabilities as classical belts but with a smaller cross-section, allowing for more compact designs.
- Banded V-Belts: Multiple V-belts joined together with a fabric band, providing increased load capacity and stability.
- Ribbed V-Belts (Poly-V Belts): Feature longitudinal ribs for improved flexibility and contact area, suitable for high-speed drives and serpentine belt applications.
- Standards: Manufacturing and dimensions are typically governed by standards such as ISO 6323, RMA/MPTA standards (Rubber Manufacturers Association/Motor & Equipment Manufacturers Association), or DIN standards.
The declared goods, “v belt k28”, refer to a type of conveyor or transmission belt, specifically a V-belt. These belts are used in power transmission systems, commonly found in machinery and equipment to transfer rotational force. The “k28” likely denotes a specific size or standard within the V-belt specification.
The following HS codes are relevant based on the provided reference material:
-
4010313000: This HS code covers conveyor or transmission belts of vulcanized rubber; transmission belts; endless transmission belts of trapezoidal cross section (V-belts), V-ribbed, of an outside circumference exceeding 60 cm but not exceeding 180 cm; combined with textile materials. This is a strong match given the description of a V-belt.
- 40: Rubber and articles thereof.
- 10: Conveyor or transmission belts or belting, of vulcanized rubber.
- 31: Transmission belts.
- 30: Endless transmission belts of trapezoidal cross section (V-belts), V-ribbed, of an outside circumference exceeding 60 cm but not exceeding 180 cm.
-
4010391000: This HS code also covers conveyor or transmission belts of vulcanized rubber; transmission belts; other; of trapezoidal cross section (V-belts and belting); combined with textile materials. This code is applicable if the V-belt does not fall within the specific circumference range of 60-180 cm defined in HS code 4010313000.
- 40: Rubber and articles thereof.
- 10: Conveyor or transmission belts or belting, of vulcanized rubber.
- 39: Other.
- 10: Of trapezoidal cross section (V-belts and belting).
-
4010399000: This HS code covers conveyor or transmission belts of vulcanized rubber; transmission belts; other; other. This code is applicable if the V-belt does not fall within the specific circumference range of 60-180 cm defined in HS code 4010313000 and is not combined with textile materials.
- 40: Rubber and articles thereof.
- 10: Conveyor or transmission belts or belting, of vulcanized rubber.
- 39: Other.
- 90: Other.
Tax Rate Information:
For HS codes 4010313000 and 4010391000, the tax rate details are as follows:
- Basic tariff: 3.4%
- Additional tariff: 25.0%
- Additional tariff after 2025.4.2: 30.0%
- Total tariff: 58.4%
Important Note:
Please verify whether the V-belt is combined with textile materials. If it is, HS codes 4010313000 or 4010391000 are applicable. If not, HS code 4010399000 may be more appropriate.