Find HS Code and trade information for rocker cap

Rocker Cap

A rocker cap, also known as a compression cap, retainer cap, or end cap, is a fastener used to secure a component onto a shaft, rod, or other cylindrical object. It typically prevents axial movement and can also provide a degree of protection to the shaft end.

Material:

• Steel: Common for high-strength applications, often with coatings like zinc plating for corrosion resistance.
• Stainless Steel: Used in corrosive environments or where hygiene is critical.
• Aluminum: Lighter weight option, suitable for less demanding applications.
• Plastic: Used for low-load applications or where electrical insulation is needed. (e.g., Nylon, Polypropylene)

Purpose:

• Axial Retention: Primarily designed to hold components firmly in place along the axis of a shaft.
• Shaft Protection: Shields the shaft end from damage, contamination, and wear.
• Load Bearing (Limited): Can handle some axial load, but are generally not designed for significant radial or bending loads.
• Sealing (Sometimes): Some designs incorporate seals to prevent fluid or gas leakage.

Function:

Rocker caps function by compressing against the component and the shaft, creating friction that resists movement. The compression can be achieved through various methods:

• Threaded: Caps with internal threads that screw onto a threaded shaft.
• Split: Caps with a split that allows them to be expanded onto a shaft without threads. These are often tightened with a bolt or screw.
• Spring-Loaded: Caps with an internal spring that provides constant pressure against the component.
• Tapered: Caps with a tapered internal diameter that wedges onto a tapered shaft.

Usage Scenarios:

• Automotive: Securing shafts in transmissions, axles, and other mechanical components.
• Industrial Machinery: Retaining rollers, bearings, and other cylindrical parts.
• Electrical Equipment: Holding components in motors, generators, and other devices.
• Pneumatic & Hydraulic Systems: Securing pistons, rods, and seals.
• Home Appliances: Used in various components within washing machines, dryers, and other appliances.

Common Types:

• Threaded Compression Caps: Most common type, offering a simple and secure fastening method.
• Split Collet Caps: Provide a strong grip on the shaft without requiring threads. Often used for quick assembly and disassembly.
• Spring-Loaded Caps: Maintain constant pressure, ideal for applications with vibration or fluctuating loads.
• Tapered Caps: Used with tapered shafts for a secure and self-locking connection.
• Retaining Rings with Caps: Combination of a retaining ring and a cap for enhanced axial retention.
• Knurled Caps: Provide a textured surface for easy manual tightening and loosening.

Based on the provided information, identifying the precise HS code for "rocker cap" requires careful consideration of its material and application. Here's a breakdown of potentially relevant HS codes:

• 8483907000: This code covers "Parts of articles of subheading 8483.20". Chapter 84 relates to "Machinery parts, not containing electrical connectors, insulators, coils, contacts or other electrical features, and not specified or included elsewhere in this chapter". Heading 8483 specifically refers to "Toothed wheels, chain sprockets and other transmission elements presented separately". This code might be applicable if the rocker cap is a component of a transmission system.
• 8483908040: This code covers "Parts of universal joints". Chapter 84 relates to "Machinery parts, not containing electrical connectors, insulators, coils, contacts or other electrical features, and not specified or included elsewhere in this chapter". Heading 8483 specifically refers to "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)". This code might be applicable if the rocker cap is a component of a universal joint.
• 7326908688: This code covers "Other articles of iron or steel: Other: Other: Other Other". Chapter 73 relates to "Other articles of iron or steel". This code is a broad category and might be applicable if the rocker cap is made of iron or steel and doesn't fall into more specific classifications.
• 7326908605: This code covers "Other articles of iron or steel: Other: Other: Other Rods for electrical grounding". Chapter 73 relates to "Other articles of iron or steel". This code is a specific category and might be applicable if the rocker cap is made of iron or steel and is used as a rod for electrical grounding.

Important Considerations & Suggestions:

• Regarding HS codes 7326908688 and 7326908605, please note the need to verify the material (steel or aluminum) as these codes have a 25% additional tariff for steel and aluminum products.
• The applicability of HS codes 8483907000 and 8483908040 depends on whether the rocker cap is definitively part of a transmission system or a universal joint, respectively.
• According to the provided reference material, the HS code options related to 'rocker cap' are limited, with only the following 4 found.