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Precision Slewing Drives & Bearings

MA ANSHAN JING WEI SLEWING RING CO., LTD. – A national high-tech enterprise specializing in wind power, photovoltaic, and engineering machinery transmission systems. Trusted by global partners for reliability, innovation, and performance.

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About Masjingwei

MAANSHAN JING WEI SLEWING BEARING CO., LTD. is located in Dangtu Economic Development Zone. We are a national-level "specialized, refined, new and small giant enterprise" integrating the design, development, and manufacturing of wind power main bearings, yaw and pitch bearings, photovoltaic rotary reducers, and engineering machinery rotary bearings.

As a national high-tech enterprise and an "honest unit" in Dangtu County, we pride ourselves on innovation, quality, and customer satisfaction. Our wholly-owned subsidiary, MAANSHAN JINGWEI NEW ENERGY DRIVE EQUIPMENT CO., LTD., supports our mission in renewable energy transmission systems.

  • National High-Tech Enterprise
  • Wholly-Owned Subsidiary in New Energy
  • Custom Solutions for Global Clients
Factory Interior

Our Core Product Lines

Engineered for performance, durability, and precision across industries.

Slewing Drive

Integrated decelerating transmission mechanism combining driving power source and slewing ring. Ideal for cranes, solar trackers, and industrial machinery.

Slewing Bearing

Also known as rotary or turntable bearing. Handles axial, radial, and overturning forces. Known as "the joint of the machine."

Featured Products

New Design Open Type Slewing Drive S9

New Design Open Type Slewing Drive S9

Cost-effective alternative to fence-type rotary drives. Ideal for crane applications. Includes open base and slewing bearing.

Slewing Drive
Three Row Column Slewing Ring

Three Row Column Slewing Ring

Features three races with separated radial and axial raceways. Enables precise load distribution across rollers.

Slewing Bearing
Single Row Four Point Contact Ball Slewing Bearing

Single Row Four Point Contact Ball Bearing

Customizable for radar, military turrets, machine tools, and excavators. Handles axial, radial, and tilting moments.

Slewing Bearing
Cross Roller Slewing Bearing

Cross Roller Slewing Bearing

High-precision bearing used in rotating tables, manufacturing devices, and measuring instruments.

Slewing Bearing
Truck Crane Slewing Bearing

Truck Crane Single Row 50 Mn Slewing Bearing

High-strength bearing designed for heavy-duty truck cranes. Ensures stability under extreme loads.

Slewing Bearing
Double Row Linkage Reducer

Double Row Linkage Reducer (JV6B Series)

Drives two solar panel mounts with one motor. Improves efficiency, reduces power consumption, and ensures stable output.

Photovoltaic Drive
All-Terrain Photovoltaic Tracking Drive

All-Terrain Photovoltaic Tracking Drive

Designed for sloped terrain. Reduces steel usage and supports custom solar tracker configurations.

Photovoltaic Drive
Eccentric Tracking Drive

Eccentric Tracking Drive (JV Series)

Easy maintenance, higher torque, and reduced reducer load. Improved version for photovoltaic tracking systems.

Photovoltaic Drive
Mechanical Multi-Drive

Mechanical Multi-Drive (JL Series)

One motor drives multiple solar panels. Stable transmission, simple structure, and high rigidity.

Photovoltaic Drive
High Precision JP Series Rotary Reducer

High Precision JP Series Rotary Reducer

Critical component in engineering equipment. Offers high accuracy and long service life in demanding environments.

Photovoltaic Drive

Why Choose Masjingwei?

Industry-Leading Quality

Certified national high-tech enterprise with strict quality control and ISO-standard manufacturing processes.

Custom Engineering

Tailored solutions for unique applications in wind, solar, and heavy machinery sectors.

Global Support

Multilingual team ready to assist with technical inquiries, logistics, and after-sales service.

1000+
Global Clients
15+
Years Experience
50+
Engineers
98%
Customer Retention

Frequently Asked Questions

What is a slewing drive?

A slewing drive is an integrated decelerating transmission mechanism that combines a driving power source with a slewing ring. It enables rotation, deceleration, and driving in one compact unit.

Where are slewing bearings used?

Slewing bearings are used in ship equipment, engineering machinery, medical devices, wind turbines, and solar trackers—anywhere rotational motion under heavy load is required.

Can you customize products?

Yes. We offer full customization for slewing drives and bearings based on load, speed, environment, and mounting requirements.

What industries do you serve?

We serve wind energy, photovoltaic solar, construction machinery, medical equipment, industrial automation, and defense sectors.

Do you offer international shipping?

Yes. We ship globally with reliable logistics partners and provide full documentation support.

Get in Touch

For inquiries, technical support, or custom solutions, visit our official website to connect with our team.

Visit Official Website

Email: zyy@masjwei.com

Email: ycl@masjwei.com

Email: jxx@masjwei.com

Phone: 13855520181

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