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Precision Industrial
Components Supplier

ISO 9001 Certified Manufacturer of High-Performance Bearings, Pulleys, Belts, Seals, Chains & Marine Components. OEM/ODM Services Available.

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ISO 9001 Certified

Committed to international quality standards in every product we manufacture.

OEM/ODM Services

Custom engineering and manufacturing solutions tailored to your specifications.

Technical Support

Expert guidance and documentation for seamless integration and maintenance.

About STS Machinery

Shanghai Tonsor Machinery Co., Ltd is a leading manufacturer and exporter of industrial components based in Shanghai, China. With years of experience in precision engineering, we deliver reliable, high-performance solutions to global markets.

Our Commitment to Excellence

We specialize in the design, production, and distribution of a comprehensive range of industrial components including bearings, timing pulleys, belts, oil seals, chains, motors, and marine-specific products.

Our ISO 9001 certification reflects our dedication to quality management systems, ensuring consistent product performance and customer satisfaction across all operations.

With strong R&D capabilities and a focus on innovation, we offer OEM and ODM services to meet unique application requirements across diverse industries such as automotive, construction, agriculture, marine, and material handling.

Established

2002

Export Markets

60+ Countries

Production Lines

Advanced CNC & Automation

R&D Team

20+ Engineers

Factory Equipment Quality Control Pulley Product Bearings

Our Product Range

High-quality industrial components engineered for durability, precision, and performance in demanding applications.

Sliding Gate Pulley

2 Inch V U H SUS304 Groove Wheels

Sliding Gate Pulley Caster Roller Wheel - Stainless Steel Construction

Min Order: 1 View Details
Urethane Molded Bearings

Silicon Rubber Urethane Molded Bearings

Models: UMBB3-10, UMBB3-12, UMBB4-13, UMBB4-16, UMBB5-16, UMBB5-20

Min Order: 1 View Details
Phenolic Sleeve Bearing

Phenolic Sleeve Bearing

Shaft Sleeve Bearing for Propeller Shaft Bushing - Marine Grade

Min Order: 1 View Details
UMBB Series Bearings

UMBB Series Molded Bearings

High-Damping Urethane Bearings for Vibration Control

Min Order: 1 View Details

Hydraulic Rod Ends Bearings

GAS/GK...SK/CGAS/SIA Series - High Load Capacity

Min Order: 1 View Details

IKO/NSK Spherical Plain Bearings

GE...ES, GE...LO, GEEEW...ES Series - Precision Engineered

Min Order: 1 View Details

Water-Lubricated Brass Bearings

Cutless Bearings for Marine & Pump Applications

Min Order: 1 View Details

Trapezoidal Tooth Timing Belts

H/L/MXL/XH/XL/XXH Profiles - Rubber Synchronous Belts

Min Order: 1 View Details

SKF Automatic Lubricator

Models: LAGD125/WA2, LAGD125/HQ2, LAGD125/EM2, LAGD60/WA2

Min Order: 1 View Details

Marine Shaft Bearings

Brass Flanged Bearings & Boat Shaft Bearings

Min Order: 1 View Details

Cylindrical Roller Bearings

Models: 2700-2702, 2507, 2735, 2640, 2703, 2610, 2657

Min Order: 1 View Details

Motorcycle Engine Chains

O-Ring & X-Seal Chains for Drive Systems

Min Order: 1 View Details
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Why Choose STS Machinery

ISO 9001 Certified

Our quality management system meets international standards for consistent product excellence.

OEM/ODM Services

Custom design and manufacturing capabilities to meet your specific technical requirements.

Global Shipping

Reliable logistics network delivering to over 60 countries with efficient lead times.

Technical Support

Dedicated engineering team providing installation guidance, troubleshooting, and documentation.

1000+
Product Variants
60+
Countries Served
20+
Years Experience
500+
Satisfied Clients

Get in Touch

Contact us for product inquiries, quotations, or technical support. We respond to all messages promptly.

Contact Information

info@sts-machinery.com
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