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About Us
Ningbo Zhenhai Jinjinnaichi (NJJ) Bearing Co., Ltd. is a national high-tech enterprise specializing in the production of small-sized thin-wall low-noise deep-groove ball bearings.
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Products
The company insists on relying on technological progress, adopting advanced technology and introducing advanced equipment, and is committed to the development and development of low noise bearings.
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News
Now has more than 130 automatic production lines, equipped with a full set of advanced bearing testing equipment, has a full set of automatic assembly line, the use of automatic line in one step.
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Contact
At present, the company selects the high-quality supplier resources in the industry, supporting the supply of bearing steel, steel ball, cage, dust cover and a series of raw materials
ball bearing
Reliability and Durability: China’s Deep Groove Ball Bearings for Every Application
Reliability and Durability: China’s Deep Groove Ball Bearings for Every Application Table of Contents Introduction to Deep Groove Ball Bearings What Are Deep Groove Ball Bearings? Benefits of Using Deep Groove Ball Bearings Applications of Deep Groove Ball Bearings Manufacturing Process of Deep Groove Ball Bearings in China Quality Control and Standards in China Choosing the Rig
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2025
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Understanding Roller Bearings: Essential Components for Industrial Machinery
Roller bearings are critical components in many industrial applications, serving as integral parts of machinery that require the reduction of friction between moving parts. Unlike traditional ball bearings, roller bearings utilize cylindrical rollers to support loads, which allows for greater contact area and consequently, improved load distribution. This design makes roller bearings particularly
08
2025
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01
Unleashing the Power of Roller Bearings in Machinery: Enhancing Efficiency and Reliability
Unleashing the Power of Roller Bearings in Machinery Table of Contents 1. Introduction to Roller Bearings 2. The Importance of Roller Bearings in Machinery 3. Types of Roller Bearings and Their Applications 3.1 Cylindrical Roller Bearings 3.2 Spherical Roller Bearings 3.3 Tapered Roller Bearings 4. Key Features of Roller Bearings that Enhance Performance 5. Selecting the Right Ro
03
2025
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01
Understanding Roller Bearings: Essential Components for Industrial Applications
Roller bearings are a critical component in the machinery and equipment used across various industries. They are designed to reduce friction and facilitate smooth rotational motion, making them essential for the reliability and efficiency of rotating parts. Unlike traditional plain bearings, roller bearings use cylindrical rollers to maintain the separation between moving parts, allowing for great
29
2024
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12
Enhancing Performance: Choosing the Optimal Roller Bearing Design for Industrial Applications
Enhancing Performance: Choosing the Optimal Roller Bearing Design for Industrial Applications Table of Contents Understanding Roller Bearings The Importance of Roller Bearing Design Types of Roller Bearings Cylindrical Roller Bearings Spherical Roller Bearings Tapered Roller Bearings Key Criteria for Selecting Roller Bearings
24
2024
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12
The Marvel of Engineering: Understanding the Largest Ball Bearing in the Industry
Ball bearings play a crucial role in the functionality and efficiency of many industrial machines. Among their various types, one of the most interesting categories is the ball bearing by size—the largest ball bearings. These impressive components are not just engineering marvels; they represent the pinnacle of design and manufacturing technology, enabling massive machinery to operate smoothly and
19
2024
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12
Revolutionizing Manufacturing Processes with the Largest Ball Bearings
Revolutionizing Manufacturing Processes with the Largest Ball Bearings Manufacturing industries are constantly seeking innovative solutions to improve efficiency and reduce costs. One significant advancement in this pursuit is the development and utilization of **large ball bearings**. This article delves into how these components are redefining manufacturing processes, enhancing operational effic
14
2024
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12
The World's Largest Ball Bearing: An Engineering Marvel
Ball bearings are essential components in many industrial applications, allowing for smooth rotation and reduced friction between moving parts. Among the various types of ball bearings, the largest ball bearing stands out as a remarkable feat of engineering. This giant bearing exemplifies the potential of modern manufacturing and material science, pushing the boundaries of what is possible in the
09
2024
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12
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SERVICE HOTLINE
Add:No. 9, Fengshuidun Road, Luotuo Street, Zhenhai District, Ningbo City
Tel：0086-574-86583010
Fax：0086-574-86575268
Mob：+86 15869336060
E-mail：njjbearing@gmail.com
WhatsAPP：+008615869336060/+0086 15857406704
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