Bearing Pulley Wheel Factory | Dongguan SEMEl Machinery Co., Ltd.

About SEMEI Machinery

Dongguan SEMEl Machinery Co., Ltd. is a leading manufacturer located in Dongguan, Guangdong Province, specializing in plastic rollers, rubber-coated bearings, and precision bearing solutions. Verified by SGS, our products meet international standards including CE, ROHS, and REACH, and are trusted across global markets.

With over 1000 roller molds and a team of 15 professional engineers, we offer custom ODM/OEM services, tailoring size, material, and packaging to your exact specifications. Our mission is to deliver durable, corrosion-resistant, and high-performance rollers for doors, windows, industrial equipment, medical devices, 3D printers, and more.

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Our Products

Precision-engineered rollers and bearings for industrial, commercial, and consumer applications. Browse by shape, material, or use case – all available for customization.

PU-Flat PU Wheel

Durable polyurethane flat roller for smooth linear motion in industrial systems.

BSR-Plastic Round Wheel

High-precision POM round roller ideal for drawer slides and light-duty conveyors.

BSU-Plastic U Groove

U-shaped groove roller for cable guiding and track systems in automation.

U/V Groove Bearing

Precision V-groove bearings for linear motion and alignment in machinery.

Nylon Roller Wheel

Corrosion-resistant nylon wheels for garage doors, windows, and heavy loads.

BST-Double Bearing Rollers

Dual-bearing design for enhanced load capacity and stability.

6200 Series Ball Bearings

Deep groove ball bearings made from chrome steel for high-speed applications.

Ceramic Hybrid Bearing

High-performance hybrid bearings with ceramic balls and steel rings.

Stainless Steel Bearing

Corrosion-proof bearings ideal for medical, food, and marine environments.

PEEK Roller Wheel

Ultra-high-performance thermoplastic roller for extreme temperature and chemical resistance.

BSS-Wheel with Screw

Integrated screw design for quick and secure mounting in assemblies.

PUFL-PU Flywheels

High-inertia polyurethane flywheels for energy storage in mechanical systems.

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Why Choose SEMEI?

Certified Quality

SGS, CE, ROHS, REACH certified. All products meet international safety and environmental standards.

1000+ Roller Molds

Extensive mold library enables rapid prototyping and customization for any application.

15 Engineers Team

Dedicated R&D team ensures innovative, reliable, and precision-engineered solutions.

Factory Direct Price

Wholesale pricing with no middlemen. Free samples available upon request.

Frequently Asked Questions

Do you support OEM/ODM services?

Yes, we fully support OEM and ODM customization including size, material, color, and packaging based on your drawings or samples.

What materials do you offer for roller wheels?

We manufacture rollers from PU (Polyurethane), POM (Acetal), Nylon, POK, PA, PEEK, and more, depending on application requirements.

Are your products certified?

Yes, all our products are SGS verified and comply with CE, ROHS, and REACH standards for quality and environmental safety.

Can I get a free sample?

Yes, we offer free samples for qualified inquiries. Contact us directly to request samples based on your needs.

What are your main applications?

Our rollers are used in doors & windows, industrial machinery, medical devices, 3D printers, garage systems, conveyor lines, and automation equipment.

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Bearing Pulley Wheel Factory Your Expert in PU & Plastic Roller Wheels