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J&W Auto Parts manufactures CNC-machined Hub Centric Spacers for automotive aftermarket distributors, wholesalers, and OEM partners worldwide. Our spacers are designed to create an accurate connection between the vehicle hub and the wheel, helping provide additional wheel clearance, accommodate wider wheel and tire combinations, and increase track width while maintaining proper wheel centering.
Compared with standard lug-centric spacers, hub centric spacers are manufactured with a center bore and hub lip that correspond to the vehicle hub. This design helps position the wheel concentrically during installation and can reduce vibration caused by improper wheel centering.
To support different vehicle platforms and aftermarket requirements, J&W Auto Parts manufactures several common configurations, including:
• 4-Hole Hub Centric Spacers for compact vehicles.
• 5-Hole Hub Centric Spacers for most passenger cars, SUVs, and light trucks.
• Universal Hub Centric Spacers for a broad range of aftermarket applications.
Selecting a manufacturing partner involves more than comparing unit prices. Machining accuracy, production capacity, quality management, and engineering support all contribute to consistent product quality and long-term supply stability.
Located in Zhejiang, China, J&W Auto Parts operates a dedicated manufacturing facility for wheel accessories, supporting OEM and ODM projects for customers in different automotive markets.
Our manufacturing facility covers more than 10 acres and is equipped with over 20 high-precision CNC machining centers together with multi-ton progressive stamping equipment.
This production capacity allows us to maintain consistent machining quality across both standard products and customized orders. During production, critical dimensions such as the center bore, bolt pattern, and spacer thickness are inspected throughout the machining process to help maintain dimensional consistency before surface finishing.
The combination of CNC machining, stamping, and an established production workflow also enables us to support both large-volume production and flexible manufacturing schedules for customized projects.
Quality management is integrated throughout the entire manufacturing process, from incoming raw materials to final inspection before shipment.
Our factory operates under a 5S management system, helping maintain standardized production procedures and process consistency. Incoming aluminum materials undergo spectrometric analysis to verify alloy composition before entering production.
Finished Hub Centric Spacers are subjected to 72-hour salt spray resistance testing in accordance with our IATF 16949 quality management procedures to evaluate corrosion resistance under demanding operating conditions.
In addition to material verification, multiple dimensional inspections are performed during machining to confirm that key specifications remain consistent before products are packaged and shipped.
Vehicle platforms often require different wheel specifications, making customized manufacturing an important part of many aftermarket projects.
J&W Auto Parts provides OEM and ODM manufacturing services based on customer drawings, technical specifications, or physical samples. Our engineering team works closely with customers to develop products that meet individual vehicle and market requirements.
Customization options include:
• Customized spacer dimensions and thicknesses (from 3 mm to 50 mm+)
• Customized Pitch Circle Diameter (PCD) configurations
• Customized Center Bore (CB) dimensions
• Surface treatments including Anodizing, Electrophoresis, and Laser-engraved branding
Whether the project involves high-volume production for established product lines or smaller quantities for specialized vehicle applications, our manufacturing system is designed to support flexible production while maintaining consistent machining quality.
Material selection directly influences the strength, durability, and long-term performance of wheel spacers.
Depending on customer requirements, J&W Auto Parts manufactures Hub Centric Spacers using 6061-T6 or 7075-T6 forged aluminum alloys. These materials are widely used in automotive components because they provide a combination of strength, corrosion resistance, and machining stability.
Compared with cast aluminum, forged aluminum generally offers higher yield strength and improved structural consistency, making it suitable for applications that experience repeated cornering loads, braking forces, and varying road conditions.
The selected material is combined with CNC machining to help maintain consistent dimensions and surface quality throughout the manufacturing process.
Choosing the appropriate material is an important consideration when evaluating the performance of wheel spacers.
|
Feature |
Forged 6061-T6 / 7075-T6 Aluminum |
Cast Aluminum |
|
Yield Strength |
Higher structural strength |
Lower structural strength |
|
Thermal Performance |
Good heat dissipation |
Dependent on casting quality |
|
Machining Consistency |
Suitable for precision CNC machining |
May vary depending on casting process |
|
Dimensional Accuracy |
Maintained through CNC machining |
Depends on mold accuracy and casting quality |
Material selection should always be based on the intended vehicle application, operating conditions, and engineering requirements.
Proper wheel centering is one of the key factors affecting driving stability after wheel spacers are installed.
In many cases, vibration experienced after installation is related to the fitment between the wheel, spacer, and vehicle hub rather than the spacer itself. If the center bore or hub lip does not match the original hub dimensions, even a small deviation may affect wheel centering during rotation.
A hub centric spacer is manufactured with a center bore and hub lip that correspond to the vehicle hub. During installation, this design allows the spacer to seat on the hub before the wheel is mounted, helping position the wheel concentrically with the axle.
Compared with standard lug-centric spacers, which rely mainly on the wheel studs for positioning, a properly matched hub centric spacer helps reduce installation-related vibration by improving wheel alignment between the hub and the wheel.
Correct installation, proper wheel torque, and compatibility between the spacer, vehicle hub, and wheel are all important factors in achieving the expected performance.
Fitment accuracy is one of the most important considerations for distributors and vehicle manufacturers. To reduce compatibility issues across different vehicle platforms, our engineering team reviews product specifications before production begins.
Three key dimensions are verified during product development and manufacturing.
The bolt pattern determines how the spacer aligns with the vehicle hub and wheel.
Common specifications, including 5×114.3, 5×120, and other customer-required bolt patterns, are machined according to approved technical drawings. During production, bolt hole locations are inspected to help maintain dimensional consistency.
The center bore connects the spacer with the vehicle hub.
A properly machined center bore helps the spacer fit the hub correctly and supports accurate wheel positioning during installation. Depending on project requirements, center bore dimensions are manufactured according to customer drawings or OEM specifications.
Spacer thickness influences wheel clearance and vehicle fitment.
Different vehicle platforms require different thicknesses depending on brake components, suspension geometry, wheel offset, and fender clearance.
J&W Auto Parts manufactures customized spacer thicknesses according to customer specifications to support different installation requirements while maintaining consistent machining quality throughout production.
J&W Auto Parts Hub Centric Spacers are supplied for a wide range of automotive applications, including:
• Passenger vehicles
• SUVs
• Pickup trucks
• Off-road vehicles
• Performance and sports cars
• Aftermarket wheel upgrades
• Suspension and wheel fitment modifications
• OEM replacement projects
• Private label aftermarket brands
Our OEM and ODM manufacturing services also support distributors, importers, and automotive brands that require customized specifications for regional markets.
A hub centric spacer is manufactured with a center bore and hub lip that match the dimensions of the vehicle hub. This design allows the wheel to be centered by the hub during installation.
A lug-centric spacer does not include a hub lip and relies mainly on the wheel studs for positioning. Depending on the installation and vehicle application, this may increase the possibility of wheel centering deviations.
The most commonly used materials are 6061-T6 and 7075-T6 forged aluminum alloys.
These materials are widely selected because they provide a combination of structural strength, corrosion resistance, and machining stability, making them suitable for precision-machined automotive components.
Material selection depends on the intended application, vehicle type, and customer requirements.
A properly manufactured hub centric spacer can help reduce vibration caused by incorrect wheel centering when its dimensions match both the vehicle hub and the wheel center bore.
However, vibration may also result from wheel balance, tire condition, suspension components, installation procedures, or incorrect torque values. For this reason, correct installation and component compatibility should always be confirmed before vehicle operation.
