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01OEM precision injection molding · Changzhou, China
Plastic Bearing Cages and Medical Injection-Molded Components.
From in-house tooling to stable mass production.
Boerjing supports custom projects with in-house mold development, precision injection molding and automated inspection.
2004Founded
≈6,000 m²Production facility
70Injection molding machines
100+Customers served
02Product scope
Two product fields, organized around the part you need.
Start with the application, then open the relevant component category or bearing series.
03Manufacturing and quality
From tooling to a molded part.
Follow a simplified needle-roller cage through molding, window-core withdrawal and part ejection.
- Form the cage
- Withdraw the window cores
- Eject the part
Product reference
Concept illustration. Geometry and motion are schematic, not an actual Boerjing mold.
IATF 16949:2016 and ISO 13485:2016 support controlled manufacturing within their applicable certified scopes. They are quality management system certifications, not product certifications.
In-house Mold Development
Mold design, machining, trial molding and modification are completed within our own facility.
Precision Injection Molding
Seventy injection molding machines support sampling, small-batch validation and repeat production.
Automated Inspection
Automated inspection equipment helps improve production consistency and inspection efficiency.
Project-based Manufacturing
Materials, tolerances, inspection and packaging are confirmed according to each customer’s specifications.
04Representative bearing range
Representative Plastic Bearing Cages.
Browse more bearing cage series and reference specifications in the product center.
Have a drawing or approved sample?