Non-sealed Motorcycle Chains

What Are Non-sealed Motorcycle Chains?

Non-sealed motorcycle chains do not have O-ring, X-ring, or Z-ring seals. The structure is simple. It mainly includes inner plates, outer plates, pins, bushings, and rollers. When installed with the sprockets, the chain transfers power from the engine side to the rear wheel.

This type of chain is easy to understand and easy to maintain. There are no rubber seals between the chain plates, so cleaning and lubrication are more direct. It is also easier to check wear, rust, tight spots, or damaged links during regular service.

Non-sealed chains are often used on commuter motorcycles, small-displacement bikes, light motorcycles, and repair replacement products. They are suitable for riding conditions where chain cleaning and oiling are done regularly.

Common sizes include 420 Motorcycle Chain, 428 Motorcycle Chain, 520 Motorcycle Chain, and other standard motorcycle chain models. For different use requirements, the chain can be made as a standard type, heavy duty type, or reinforced type.

Where Non-sealed Motorcycle Chains Are Commonly Used

Non-sealed motorcycle chains are suitable for a wide range of commercial motorcycle parts programs. They are often used for standard replacement chains, repair shop supply, e-commerce product listings, local motorcycle parts stores, service networks, export projects, and private label motorcycle parts development.

They are especially common in markets where motorcycles are used for daily transport and where chain replacement is a regular maintenance item. For small-displacement motorcycles, commuter bikes, dirt bikes, and light motorcycles, a non-sealed chain can provide practical performance while keeping the product structure simple.

This chain type is also used in chain and sprocket kit projects. When matched with suitable sprockets, packaging, and installation instructions, it can become a complete replacement solution for repair channels, parts stores, and online motorcycle parts sales.

Materials, Structure, and Surface Treatment

The quality of a non-sealed motorcycle chain starts from the material. Common materials include carbon steel, alloy steel, and heat-treated steel. For stronger chain models, reinforced plates, hardened pins, accurate rollers, and wear-resistant bushings can be used.

Surface treatment can be chosen according to the product use and storage conditions. Common options include zinc plating, nickel plating, black finish, anti-rust oil, and other protective finishes.

Non-sealed chains do not have rubber sealing rings. The structure is simple and direct. This makes installation, cleaning, and checking easier. At the same time, the chain needs regular oiling during use. Clear installation instructions and maintenance guidance can help reduce wrong use and extend the working life of the chain.

Production Process

At Jiangshan Wangpai Chain Industry Co., Ltd., we check the order details before production. This includes chain model, size, material, surface finish, chain length, and packing requirements.

Chain plates are punched by machine. Pins are cut to the required length. Bushings and rollers are formed according to the chain size. Some parts are heat-treated for better hardness and wear resistance.

Surface finish is made as required. Common finishes include anti-rust oil, black finish, zinc plating, nickel plating, and other protective treatments.

After parts are prepared, the chain is assembled on the line. The chain is checked for length, size, movement, surface, and appearance. Some orders also need pre-stretching, oiling, anti-rust treatment, tensile testing, or hardness testing.

Main production equipment includes punching machines, pin cutting machines, tube rolling machines, quenching equipment, mesh belt conveyors, assembly lines, and packing machines.

Inspection equipment includes hardness testers, tensile testing machines, length measuring tools, metallographic analysis equipment, interlocking force testing equipment, and fatigue testing equipment. These are used to check hardness, strength, size, fit, and batch stability before shipment.

Key Points for Product Selection

When choosing a non-sealed motorcycle chain, the basic details should be checked first. These include chain size, link quantity, tensile strength, plate thickness, pin hardness, roller movement, surface finish, joint link type, sprocket matching, packing method, and working conditions.

Different chain sizes are used for different motorcycles. 420 Motorcycle Chain is often used on small motorcycles and light-duty models. 428 Motorcycle Chain is common for commuter motorcycles and medium light use. 520 Motorcycle Chain is used on larger motorcycles or models with higher load requirements.

For heavy-duty use, the chain can be made with thicker plates, stronger pins, and reinforced parts. This helps improve strength and service life under harder riding conditions.

Non-sealed chains are often used where maintenance is regular and replacement cost needs to be controlled. The final chain specification should match the motorcycle model, road condition, maintenance habit, and local market demand.

Product Types and Specifications

Our non-sealed motorcycle chain range can cover different standard and reinforced applications. Available product types may include:

• Standard Non-sealed Motorcycle Chain
• Heavy Duty Motorcycle Chain
• Reinforced Motorcycle Chain
• 420 Motorcycle Chain
• 428 Motorcycle Chain
• 520 Motorcycle Chain
• Dirt Bike Chain
• OEM Motorcycle Chain
• Motorcycle Transmission Chain
• Motorcycle Chain and Sprocket Kit

Jiangshan Wangpai Chain Industry Co., Ltd. also produces common motorcycle chain models such as 415H, 420, 420H, 428, 428H, 520, 520H, 530, and 530H. For higher-grade applications, the company also manufactures oil-sealed racing chains, including 415H0, 420H0, 428H0, 520H0, and 530H0 series.

This product coverage allows different chain programs to be arranged according to size, strength level, surface finish, packaging, and application requirements.

Customization and Manufacturing Support

For customized projects, we can make chains according to order requirements. Chain size, link quantity, surface finish, packing style, and product set can be adjusted.

Chain length can be changed. Connecting link type can be selected. Plate thickness, anti-rust treatment, and surface finish can also be made as required. Chain and sprocket kits are available for matched orders.

For new items, customers can provide drawings, samples, or detailed specifications. Our team will check the structure, size, and production requirements before making the order.

Jiangshan Wangpai Chain Industry Co., Ltd. supplies non-sealed motorcycle chains for different markets. Our products are exported to Europe, America, the Middle East, Southeast Asia, and Africa.

We work with motorcycle parts distributors, repair parts suppliers, brand owners, and long-term buyers. We focus on stable production, clear specifications, regular inspection, and reliable supply.