About YunYe Precision Parts
Engineering parts supplier since 1997. Quality, reliability, and worldwide service.
YunYe Precision Parts is a leading supplier of specialty engineering and mechanical components. Incorporating the former ranges of Bearing Shop Online and Hobby & Engineering Supplies, we stock thousands of products across bearings, belts, bushes, seals, fasteners, and precision tools. Our online-only model keeps costs low and dispatch fast — no counter sales, just great service delivered to your door.
Factory Tour
Take a look inside our manufacturing and quality control facilities.
CNC Machining Center
5-axis CNC machining centers for precision component manufacturing
Certifications & Compliance
Our quality management system is certified to international standards.
Brand Partners
We provide high-quality equivalents to major global brands.
We provide high-quality equivalents to major global brands — matching or exceeding OEM standards
Quality Assurance
Every batch is rigorously inspected before shipment to ensure consistent quality.
Dimensional Inspection
Batch Verification
Every batch inspected before shipment
Our quality control team performs a comprehensive 8-point inspection on every production batch. Components that do not meet specification are rejected before they reach our customers.
- Dimensional inspection using CMM (Coordinate Measuring Machine)
- Surface roughness testing (Ra 0.4–3.2 μm)
- Hardness testing (Rockwell / Vickers)
- Material composition verification (XRF analysis)
- Thread gauge inspection (Go / No-Go)
- Visual inspection under 10× magnification
- Runout & concentricity measurement
- Packaging integrity & labeling audit