2025/01/23

Solution for Wobbling Rear Guide Wheel on Bicycle: Case Study of Miniature Ball Bearings

1. Background and Challenges

A bicycle brand reported that the rear guide wheel showed noticeable wobbling after prolonged use, causing unstable chain operation and affecting overall riding performance and experience.

A thorough investigation revealed that the issue primarily stemmed from the miniature ball bearing(model: 607-2RS) provided by the original supplier, where the gap configuration had not been optimized according to actual requirements.

2. Our Solution

We worked closely with the client's engineers to implement the following improvements:

Requirement Analysis: We confirmed the specific gap range requirements for the rear guide wheel during high-speed operation and analyzed how the gap affected wobbling.
Design Optimization: We improved the internal structure and gap configuration of the original bearing and provided customized samples.
Testing and Verification: Multiple assembly and real-world tests were conducted to ensure the new design fully met performance requirements.

Rear Guide Wheel Bearing

3. Results and Benefits

Improved Stability: The rear guide wheel wobbling issue was completely resolved, and the chain operation became much smoother.
Optimized Performance: The reliability of the shifting system was enhanced, significantly improving the riding experience.
Accelerated Time-to-Market: Customized samples were delivered quickly, shortening the client's R&D and testing time.

4. Customer Feedback

"We are very satisfied with the new design's reduction in wobbling! The sample was perfect on the first submission."

About ISK BEARINGS

Why is ISK BEARINGS frequently chosen as the specified bearing brand by major international companies?

「Quality, Integrity, and Service」

— are ISK's three guarantees.

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Quality Assurance

More than 10 precise procedures for detection.

Integrity Guaranteed

Providing suitable products to our customers with absolute commitment.

After-Sales Service

Providing professional technical knowledge to solve product problems.

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