CNC Machining of High-Precision Motorcycle Wheel Hubs

Project Overview

Project Name: Customized Processing of Motorcycle Front and Rear Wheel Hubs
Material Used: Aluminum Alloy 6061-T6
Cooperation Quantity: 3 sets (Total: 6 units)
Production Process: CNC Turning, CNC Milling, Electrostatic Spraying
Production Cycle: 33 Days
Introduction
Lauens Technology, known for its advanced CNC machining and custom manufacturing solutions, was selected to produce high-precision wheel hubs for a high-speed motorcycle racing application. The project required meticulous attention to dimensional accuracy and material integrity to meet the performance standards of professional racing wheels. By leveraging Lauens’ expertise in CNC turning, CNC milling, and electrostatic spraying, the company successfully delivered the product to the customer’s exact specifications.

Product and Design Requirements
The motorcycle wheel hubs were designed for high-speed racing applications, where precision and performance are paramount. The customer required:

Dimensional accuracy within a tight tolerance range of 0.008-0.01mm.
A true roundness tolerance of 0.015mm, essential for stable high-speed rotation.
A specific fit for the rolling bearing (precision: 0.005mm) at the center to ensure smooth operation at high speeds.
Additionally, the wheels’ overall design required strict control of the outer shape and dimensions, as any deformation or dimensional error during processing could severely impact the fit with the tires and compromise the wheel’s performance.

Design Analysis
The customer, a professional product designer, provided the detailed design drawings, eliminating the need for any changes to the original concept. The material selected, AL6061-T6, is well-suited for precision machining, and Lauens’ professional prototyping capabilities ensured that the production process could meet the stringent design requirements.

The center position required a highly accurate rolling bearing fit (0.005mm), ensuring a tight and precise connection.
The outermost edges required a precision of 0.008mm to ensure smooth wheel rotation at high speeds without wobbling.
The tire fit needed to meet precise dimensional requirements to avoid deformation and maintain optimal fit during operation.
Surface Treatment
To enhance the product’s appearance and durability, the parts were treated with electrostatic spraying. Special attention was given to areas marked for a contrast finish, where the natural aluminum color needed to be clearly delineated from the black sprayed areas. Lauens used advanced masking and spraying techniques to meet the customer’s aesthetic and functional standards.

Production Process
Lauens adopted a combination of CNC turning and CNC milling for this project. The process was designed to ensure dimensional accuracy, prevent any deformation, and ensure high-quality results.

CNC Turning:
The first step in the production process was to use CNC turning to achieve the overall dimensions for the center and outer circle of the hubs. This provided a solid foundation for the subsequent milling process.

CNC Milling:
After turning, CNC milling was used to refine the details of the wheel hubs. This stage was particularly crucial for ensuring that the center position and outer dimensions were perfectly aligned. Using high-precision fixtures, Lauens minimized the risk of deformation during the clamping process, ensuring accurate machining.

Electrostatic Spraying:
The final step was the electrostatic spraying of the wheel hubs. Areas that required a natural aluminum finish were carefully masked to achieve a precise boundary between the black coating and the raw aluminum surface. This attention to detail ensured that the product was both aesthetically pleasing and functionally effective.

Testing Methodology
To guarantee the accuracy of the wheel hubs, Lauens conducted strict 3D coordinate testing to verify that all dimensions were within the specified tolerance limits. A total of 300 critical dimensions were inspected to ensure that no deviation occurred from the customer’s design specifications.

Quality Inspection
There is adherence to quality in the project, this being a very important aspect. Lauens conducted the conformity and performance checks at several-points to confirm that the hubs had arrived at the right tolerances. Each critical dimension was weighed and the final product passed through other quality control checks before releasing it to the customer.

Experience and Expertise
Lauens’ team relied on years of precision machining and custom manufacturing to design a workhorse that would meet the customer expectations. Lauens has continued to leverage on the use of modern computerized technology, experience and quality workmanship, and quality assurance standards in achieving its ideal levels of manufacturing in all parts it delivers.

Lauens provides a complete workflow from DFM review and precision machining to surface finishing and dimensional inspection. This motorcycle wheel hub project demonstrates our capability to manufacture safety-critical aluminum components with demanding functional and cosmetic requirements.

Conclusion
The motorcycle wheel hub project is evidence that Lauens Technology is capable of providing specific solutions for complex requirements by mastering tight tolerances in this high stakes application. CNC turning, CNC milling, and electrostatic spraying made it possible for Lauens to meet all the dimension accuracy and appearance standards for the wheel hubs. This case shows that Lauens is dedicated to offering customers industrial quality, performance products made according to the customer’s requirements making it a suitable supplier for high performance manufacturing solutions.

Whether you have a similar machining project or have other needs for custom machining, LAUENS TECHNOLOGY is prepared to deliver the specialized assistance and service that you need to realize your concepts and designs.