Why Rimao Bearing?

At Rimao Bearing, we are more than just a ball and roller bearing importer and wholesaler. We provide real solutions to help you deliver on the product and design goals set by your customer.

Guangzhou Rimao Bearing Co., Ltd.

Guangzhou Rimao is rooted in the heart of machinery and precision manufacturing, using bearings as a link to connect every rotation of industry, and is committed to becoming a leader in the field of industrial precision. Located in the bustling Haizhu District of Guangzhou, adjacent to the busy Haizhu Bus Station and complementing the international Pazhou Convention and Exhibition Center. Since its establishment in 2011, Rimao Bearings has relied on deep industry accumulation and relentless pursuit of technology, integrating an international perspective with local wisdom, and infusing innovative concepts into every bearing and pulley.
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Service Industry

At Rimao Bearing, we are more than just a ball and roller bearing importer and wholesaler. We provide real solutions to help you deliver on the product and design goals set by your customer.
Aerospace Aerospace
Food & Beverage Food & Beverage
Medical Medical
Robotics Robotics
Industrial Bearings Industrial Bearings
Building Materials Building Materials
Electric Motor Quality Bearings Electric Motor Quality Bearings
Sports, Recreation & Hobby Sports, Recreation & Hobby

Customization Process

At Rimao Bearing, we are more than just a ball and roller bearing importer and wholesaler. We provide real solutions to help you deliver on the product and design goals set by your customer.

Bearings in Media

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  • Rimao Bearings successfully obtained CE and ROHS certification
    Rimao Bearings successfully obtained CE and ROHS certification
    Guangzhou Rimao Bearings has some good news: all of our bearings and pulleys are CE and ROHS certified. This is a major achievement for our company, solidifying its position as a trusted supplier of high-quality bearings.     The CE certification means their products meet global health, safety, and environmental standards. Rimao is really focused on making sure their products are up to par. Plus, with ROHS compliance, it guarantees that their products don’t contain harmful substances, which reflects their commitment to being eco-friendly.   "These certifications are not just a badge of honor for us," said the CEO of Rimao Bearings, "they are a promise to our customers that we prioritize quality, safety, and environmental responsibility in everything we do. We are proud to have achieved this milestone and look forward to continuing our journey of excellence."   As a professional bearing supplier, we look forward to cooperating with you. If you have any inquiries related to purchasing bearings, please contact us at Louis@rmobearing.com.  
    August 12, 2024
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  • South African customers visit and place deep groove ball bearing sample orders
    South African customers visit and place deep groove ball bearing sample orders
    On March 18, 2025, Guangzhou Rimao Bearing Co., Ltd. was honored to welcome several distinguished customers from South Africa. The visit was mainly to learn about our high-performance deep groove ball bearings. Deep groove ball bearings are one of our most popular products, known for their low noise, high speed and excellent durability.     As a global leader in the bearing industry, Rimao Bearing is pleased to showcase its full range of certified high-quality bearings to give customers a close look at our brand's manufacturing process, quality control measures and product testing standards. The customer showed great interest in our deep groove ball bearings and had an in-depth technical discussion with our sales and engineering teams.   After a comprehensive product evaluation and factory tour, this South African customer was impressed by the quality and precision of our deep groove ball bearings. As a result, they confidently placed an order for samples on the spot, which marked a good start for our two parties to establish a long-term business cooperation relationship. Guangzhou Rimao Bearing Co., Ltd. was established in 2011 and we continue to enhance its reputation as a trusted bearing manufacturer and exporter. Our products are CE and RoHS certified to the highest global standards, ensuring peace of mind for customers around the world.   We are proud to see our bearings playing an important role in South Africa and other markets. Are you interested in high-quality deep groove ball bearings? Contact us today to request a free sample or explore our full range of industrial bearing solutions.   ? Get a quote or request a sample now  
    March 18, 2025
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  • What are the advantages of ceramic bearings compared to ordinary bearings?
    What are the advantages of ceramic bearings compared to ordinary bearings?
    In high-performance and demanding industrial applications, selecting the right bearing is critical. One option gaining widespread attention is the ceramic bearing. But how do ceramic bearings compare to traditional steel bearings, and what are the advantages of using them over ordinary bearings?    What Are Ceramic Bearings? Ceramic bearings are typically made from materials such as silicon nitride (Si3N4) or zirconium dioxide (ZrO2). Unlike conventional steel bearings, which use metal races and balls, ceramic bearings utilize ceramic rolling elements—either in full ceramic or hybrid designs (ceramic balls with steel races).   Key Advantages of Ceramic Bearings 1. Higher Speed Capability Because ceramic materials are significantly lighter than steel, ceramic bearings have lower centrifugal forces at high speeds. This allows for faster rotation and reduced friction, making them ideal for high-speed machinery, electric motors, and precision instruments. 2. Superior Heat Resistance Ceramic bearings maintain their integrity and performance at elevated temperatures, often up to 800°C or more, depending on the design. This makes them especially suited for high temperature bearing applications, such as those found in aerospace, automotive, and industrial ovens. 3. Reduced Friction and Wear With smoother surfaces and better hardness, ceramic bearing balls generate less friction and wear than steel. This results in lower energy consumption, quieter operation, and extended service life. 4. Corrosion Resistance Unlike steel, ceramic materials do not rust. This makes ceramic bearings ideal for corrosive environments, including marine applications, chemical processing, and cleanroom settings. 5. Electrical Insulation One often-overlooked advantage is that ceramic bearings act as electrical insulators. This makes them ideal for applications where electrical currents could damage steel components, such as in electric motors and wind turbines. 6. Low Maintenance Requirements Due to their durability, ceramic bearings typically require less lubrication and maintenance. In some dry-running or vacuum environments, they can even operate without any lubrication at all.   Common Applications of Ceramic Bearings High-speed spindles Electric and hybrid vehicle motors Aerospace systems Semiconductor manufacturing equipment Medical devices Vacuum pumps   Are Ceramic Bearings Worth the Investment? While ceramic bearings can be more expensive than ordinary bearings, their long-term benefits often justify the cost. Reduced maintenance, longer operational life, and improved performance can lead to significant cost savings over time.   If your application involves high speeds, high temperatures, corrosive conditions or electrical insulation needs, ceramic bearings are a smart and future-proof choice. By understanding their unique advantages, you can select the best bearing solution. If you need a professional bearing supplier to help you determine the right ceramic bearing for your application, please contact RMO. Our professional engineering team is ready to provide customized recommendations based on your performance requirements.  
    June 16, 2025
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  • Bearing Selection Guide for High Temperature Environments
    Bearing Selection Guide for High Temperature Environments
    When operating in high temperature environments, choosing the right bearing is crucial to ensure reliability, longevity, and safety. In industries such as steel, glass, and automotive manufacturing, bearings are often exposed to elevated temperatures that can degrade materials, affect lubrication, and ultimately cause premature failure.   Why Standard Bearings Fail in High Temperatures Most standard bearings are designed to operate efficiently at ambient or moderately elevated temperatures. When exposed to excessive heat, these bearings may suffer from: Lubricant breakdown, leading to increased friction and wear Loss of hardness in the bearing material Dimensional instability due to thermal expansion Premature fatigue and cracking These issues not only lead to unexpected downtime but also increase maintenance costs and risk safety hazards.   Key Factors in High Temperature Bearing Selection When choosing a bearing for high temperature applications, the following factors should be carefully considered: 1. Material Composition Materials like chrome steel may lose their hardness at elevated temperatures. Alternatives such as ceramic bearings, stainless steel, or high-speed tool steels are better suited for high heat conditions. Hybrid bearings, which combine ceramic balls with steel races, are also popular for their heat resistance and durability. 2. Lubrication Proper lubrication is vital. Standard greases may not withstand high temperatures, so opt for high temperature lubricants like solid lubricants, dry film coatings, or perfluoropolyether (PFPE) oils. 3. Bearing Clearance Thermal expansion can alter bearing dimensions. Selecting increased radial clearance allows the bearing to accommodate expansion without seizing. 4. Sealing and Shielding Heat-resistant seals and shields protect the bearing from contamination and help retain lubricants, even under thermal stress. 5. Load and Speed Ratings Evaluate the bearing load capacity and rotational speed under elevated temperatures. High temperatures can reduce the dynamic load rating, so select a bearing with an adequate safety margin.   Types of High Temperature Bearings There are various types of bearings specifically designed for high heat environments: Deep groove ball bearings: Available with heat-stabilized rings and high temp lubricants. Thrust bearings: For axial loads, often used in furnaces and kilns. Needle bearings: Compact and suitable for oscillating motions at high temps. Spherical roller bearings: Accommodate misalignment and thermal expansion.   Applications that Require High Temperature Bearings Steel mills Glass manufacturing Automotive exhaust systems Industrial ovens and dryers Aerospace and defense equipment   Maintenance Tips for High Temperature Bearings 1. Monitor temperature fluctuations regularly. 2. Use temperature-resistant mounting tools. 3. Re-lubricate based on actual operating conditions. 4. Inspect for signs of discoloration, wear, or noise. 5. Store bearings in a clean, dry, and temperature-controlled environment.   Selecting the right bearing for high temperature conditions requires more than just checking size and load specs. By factoring in material, lubrication, clearance, and sealing, you can ensure performance, safety, and cost-efficiency. Whether you’re operating in a smelting plant or running high-speed machinery, the right high temperature bearing makes all the difference. Let us help you select the best bearing for your high temperature application. RMO has over 20 years of experience in the bearing field. Our products are CE and RoHS certified. Contact our technical team for customized support.  
    June 16, 2025
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