Found 10 matching results
(CN → US)
HS Code | Product Description | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
---|---|---|---|---|---|---|
8708501110 | Parts and accessories of the motor vehicles of headings 8701 to 8705: Drive-axles with differential, whether or not provided with other transmission components, and non-driving axles; parts thereof: Drive-axles with differential, whether or not provided with other transmission components, and non-driving axles: For tractors (except road tractors): For tractors suitable for agricultural use Drive axles with differential, whether or not provided with other transmission components | Doc | 55.0% | CN | US | 2025-05-12 |
8708503150 | Parts and accessories of the motor vehicles of headings 8701 to 8705: Drive-axles with differential, whether or not provided with other transmission components, and non-driving axles; parts thereof: Drive-axles with differential, whether or not provided with other transmission components, and non-driving axles: For tractors (except road tractors): For other tractors Non-driving axles | Doc | 55.0% | CN | US | 2025-05-12 |
8701911000 | Tractors (other than tractors of heading 8709): Other, of an engine power: Not exceeding 18 kW: For agricultural use | Doc | 55.0% | CN | US | 2025-05-12 |
8701921000 | Tractors (other than tractors of heading 8709): Other, of an engine power: Exceeding 18 kW but not exceeding 37 kW: Suitable for agricultural use | Doc | 55.0% | CN | US | 2025-05-12 |
8709900090 | Works trucks, self-propelled, not fitted with lifting or handling equipment, of the type used in factories, warehouses, dock areas or airports for short distance transport of goods; tractors of the type used on railway station platforms; parts of the foregoing vehicles: Parts: Other | Doc | 55.0% | CN | US | 2025-05-12 |
8709900010 | Works trucks, self-propelled, not fitted with lifting or handling equipment, of the type used in factories, warehouses, dock areas or airports for short distance transport of goods; tractors of the type used on railway station platforms; parts of the foregoing vehicles: Parts: Road wheels | Doc | 55.0% | CN | US | 2025-05-12 |
8483308020 | 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: Bearing housings; plain shaft bearings: Other Bearing housings: Ball or roller bearing type | Doc | 59.5% | CN | US | 2025-05-12 |
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 |
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 |
8487900040 | Machinery parts, not containing electrical connectors, insulators, coils, contacts or other electrical features, and not specified or included elsewhere in this chapter: Other Oil seals, other than those of chapter 40 | Doc | 58.9% | CN | US | 2025-05-12 |
差速器
差速器是一种机械装置,主要用于车辆驱动系统中,允许两侧车轮以不同的转速旋转。其核心功能是在车辆转弯时,协调分配动力,确保车辆平稳转弯,减少轮胎打滑,并提高行驶稳定性。
目的与功能
- 允许车轮差异化转速: 在车辆转弯时,内侧车轮的行驶距离较短,外侧车轮的行驶距离较长,需要不同的转速。差速器允许两侧车轮以不同的速度旋转,避免轮胎在路面上产生滑移或跳动。
- 分配动力: 差速器将发动机的动力分配到两侧车轮,并根据路面情况自动调整扭矩分配比例。
- 提高行驶稳定性: 通过协调两侧车轮的转速和扭矩,差速器可以有效减少车辆在转弯时的侧滑,提高行驶稳定性。
工作原理
差速器通常由齿轮组、差速壳、半轴齿轮和侧分叉等部件组成。动力从发动机传递到差速壳,然后通过差速壳上的齿轮组将动力分配到两侧半轴齿轮。当车辆直线行驶时,两侧车轮转速相同,差速壳和齿轮组不旋转,动力平均分配到两侧车轮。当车辆转弯时,差速壳旋转,齿轮组发生相对运动,将动力分配到转速不同的两侧车轮。
常见类型
- 开式差速器: 最常见的类型,结构简单,成本低廉。但其缺点是在一个车轮失去抓地力时,动力会全部传递到该车轮,导致车辆无法前进。
- 限滑差速器 (LSD): 通过增加摩擦力或采用其他方式限制两侧车轮的转速差异,提高车辆的牵引力,减少轮胎打滑。常见的限滑差速器类型包括:
- 粘性限滑差速器: 利用硅油或离合器片的摩擦力限制两侧车轮的转速差异。
- 托森差速器: 利用蜗轮和行星齿轮的摩擦力限制两侧车轮的转速差异。
- 机械式限滑差速器: 通过机械结构限制两侧车轮的转速差异。
- 电控差速器: 通过电子控制系统调节两侧车轮的扭矩分配比例,实现更精确的控制。
- 电子差速锁 (EDS): 通过刹车系统对失去抓地力的车轮进行制动,将动力传递到有抓地力的车轮。
使用场景
- 普通车辆: 开式差速器用于普通车辆,满足日常行驶需求。
- 越野车辆: 限滑差速器或电控差速器用于越野车辆,提高车辆的通过性和稳定性。
- 高性能车辆: 限滑差速器或电控差速器用于高性能车辆,提高车辆的操控性和赛道性能。
- 四驱车辆: 差速器用于四驱车辆,协调前后轴和左右轴的动力分配。
维护保养
差速器通常需要定期更换差速器油,以保持其润滑性能和冷却效果。此外,还应定期检查差速器的齿轮磨损情况,及时更换磨损严重的齿轮。
差速器,根据提供的资料,其HS编码选项如下:
-
8708501110:
- 87: 第87类,机动车辆及其构件、附件。
- 08: 第08类,机动车辆的零件和附件。
- 50: 差速器、驱动桥、非驱动桥及其零件。
- 11: 带有差速器的驱动桥,无论是否带有其他传动部件,适用于农业用途的拖拉机。
- 10: 适用于农业用途的拖拉机驱动桥,带有差速器,无论是否带有其他传动部件。
- 关税:基础关税0.0%,加征关税25.0%,2025.4.2后加征关税30.0%,总税率55.0%。
-
8708503150:
- 87: 第87类,机动车辆及其构件、附件。
- 08: 第08类,机动车辆的零件和附件。
- 50: 差速器、驱动桥、非驱动桥及其零件。
- 31: 带有差速器的驱动桥,无论是否带有其他传动部件。
- 50: 适用于其他拖拉机的非驱动桥。
- 关税:基础关税0.0%,加征关税25.0%,2025.4.2后加征关税30.0%,总税率55.0%。
-
8483308020:
- 84: 第84类,核能反应堆、锅炉、机器、机械器具及其零件。
- 83: 传动轴(包括凸轮轴和曲轴)及曲柄、轴承座、带轴承的轴承座及普通轴承、齿轮及齿轮传动装置、滚珠或滚柱螺钉、变速箱及其他变速器(包括扭矩转换器)、飞轮及滑轮(包括滑轮组)、离合器及轴联轴器(包括万向节);其零件。
- 30: 轴承座;普通轴承。
- 80: 其他轴承座。
- 20: 滚珠或滚柱轴承型轴承座。
- 关税:基础关税4.5%,加征关税25.0%,2025.4.2后加征关税30.0%,总税率59.5%。
-
8483608000:
- 84: 第84类,核能反应堆、锅炉、机器、机械器具及其零件。
- 83: 传动轴(包括凸轮轴和曲轴)及曲柄、轴承座、带轴承的轴承座及普通轴承、齿轮及齿轮传动装置、滚珠或滚柱螺钉、变速箱及其他变速器(包括扭矩转换器)、飞轮及滑轮(包括滑轮组)、离合器及轴联轴器(包括万向节);其零件。
- 60: 离合器及轴联轴器(包括万向节)。
- 80: 其他。
- 关税:基础关税2.8%,加征关税25.0%,2025.4.2后加征关税30.0%,总税率57.8%。
请注意,选择正确的HS编码需要根据差速器的具体用途、安装车辆类型等信息进行判断。