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Wholesale R Series deep groove ball bearing

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R Series Deep Groove Ball Bearing Manufacturers

R series of inch deep groove ball bearings

Deep groove ball bearings are rolling element bearings that can withstand radial and axial loads. Their inner and outer rings have deep raceway grooves that can withstand high radial and axial loads in both directions. These bearings are commonly used in various applications such as motors, automotive parts and machinery.
The R series refers to a specific series of deep groove ball bearings designed in the imperial size. This series is widely used in the United States and other countries that use imperial measuring systems. The R series usually includes bearings with an inner diameter ranging from 0.1875 inches (4.7625 mm) to 1.5 inches (38.1 mm).
R Series Imperial Deep Groove Ball Bearing is a special type of deep groove ball bearing designed for applications requiring Imperial measurement.
Bearing model Dimensions (mm) Steel ball Basic Load Rating (KN) Extreme speed (rpm) Weight (kg)
Aperture d Outer diameter D Width B Minimum radius r Dimensions mm Quantity number Dynamic Cr Static Cor Grease lubrication Oil lubrication
open Shielded seal
mm inch mm inch mm inch mm inch mm inch
R2 3.175 0.125 9.525 0.375 3.969 0.1563 3.97 0.1563 0.15 0.0059 1.588 7 0.63 0.218 56000 67000 0.0014
R3 4.762 0.1875 12.7 0.5 3.969 0.1563 4.98 0.1961 0.3 0.0118 2.381 7 1.3 0.485 43000 53000 0.0022
R4 6.35 0.25 15.875 0.625 4.978 0.196 4.98 0.1961 0.3 0.0118 2.381 8 1.48 0.615 38000 45000 0.0045
R6 9.525 0.375 22.225 0.875 5.556 0.2187 7.14 0.2811 0.4 0.0157 3.969 7 3.35 1.41 32000 38000 0.009
R8 12.7 0.5 28.575 1.125 6.35 0.25 7.94 0.3126 0.4 0.0157 4.769 8 4.3 1.3 26000 32000 0.02
R10 15.875 0.625 34.925 1.375 7.144 0.2813 8.73 0.3437 0.8 0.0315 4.763 10 5.99 3.285 22000 28000 0.03
R12 19.05 0.75 41.275 1.625 7.938 0.3125 11.11 0.4374 0.8 0.0315 6.35 9 7.905 4.48 17000 20000 0.052
R14 22.225 0.875 47.625 1.875 9.525 0.375 12.7 0.5 0.8 0.0315 6.35 10 10 5.85 13000 17000 0.07
R16 25.4 1 50.8 2 9.525 0.375 12.7 0.5 0.8 0.0315 6.35 10 10 5.85 13000 17000 0.085
R18 25.575 1.0069 53.975 2.125 9.525 0.375 12.7 0.5 1 0.0394 7.938 9 13.2 8.3 10000 14000 0.091
R20 31.75 1.25 57.15 2.25 9.525 0.375 12.7 0.5 1 0.0394 7.938 9 13.2 8.3 10000 14000 0.096
R22 34.925 1.375 63.5 2.5 11.112 0.4375 14.29 0.5626 1 0.0394 7.938 11 16.2 10.5 9000 12000 0.154
R24 38.1 1.5 66.675 2.625 11.112 0.4375 14.29 0.5626 1 0.0394 7.938 12 17 11.8 8500 11000 0.172

Ningbo Yuhong Bearing Co., Ltd.

Ningbo Yuhong Bearing Co., Ltd. is famous China R Series deep groove ball bearing manufacturers and wholesale R Series deep groove ball bearing Suppliers, serves as a prominent enterprise in the bearing industry within Zhejiang, situated in Pengnan Industrial Park, Henghe Town, Cixi City, Zhejiang Province. Through years of dedicated efforts, Yuhong has evolved into a high-tech enterprise, integrating bearing research and development, manufacturing, testing, and sales. Our primary focus lies in the production of deep-groove ball bearings, with a workforce comprising more than 200 skilled employees. Annually, we manufacture over 80 million pieces. Under our proprietary brands KJYJ and JHOK, we also offer the option of producing bearing products under customer-licensed brands. Our global presence spans across 50 countries and regions, catering primarily to domestic and foreign distributors or production enterprises specializing in bicycles, motorcycles, household appliances, transmission machinery, and equipment, providing comprehensive support services.

At Yuhong, we consider quality as the cornerstone of our enterprise. Rigorously adhering to the 6S lean principles, we ensure strict control over raw material inspection, steel ball and steel tube production, fittings, and bearing processing, assembly, as well as each procedural testing. This unwavering commitment guarantees the stability and reliability of our bearing products. Furthermore, we leverage advanced CNC processing equipment and a full-automatic bearing assembly line for heat treatment, turning, grinding, cleaning, and assembly processes, effectively enhancing product performance stability. Notably, we have achieved ISO9001 quality management system certification, an internationally recognized standard, reinforcing our dedication to maintaining exceptional quality standards.

We specialize in custom R Series deep groove ball bearing, We extend a sincere invitation to customers from all walks of life, both domestic and international, to visit us. Together, we can forge friendly cooperation and create mutually beneficial outcomes. Your partnership is essential to our continued growth and success.

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R Series Deep Groove Ball Bearing Industry knowledge

Q1: What are the core advantages of R series deep groove ball bearings?
As a widely used bearing type in industrial equipment, R series deep groove ball bearings are known for their high load capacity, low friction coefficient and long life. Its design structure is simple and compact, suitable for high-speed rotation scenarios, and supports radial and axial composite loads to meet the needs of diverse working conditions. Ningbo Yuhong Bearing Co., Ltd. has introduced CNC processing equipment and fully automatic assembly lines to optimize the internal geometric accuracy of bearings in key processes such as turning and grinding, further improving the dynamic performance and reliability of R series products.

Q2: How does R series bearings achieve high precision and low noise?
The manufacturing process of R series deep groove ball bearings directly affects their operating performance. Ningbo Yuhong Bearing Co., Ltd. uses advanced temperature control technology in the heat treatment process to ensure the uniformity of the metallographic structure of the material; the grinding process uses a digital detection system to calibrate the surface roughness of the raceway in real time to reduce friction vibration. In addition, the fully automatic assembly line accurately controls the clearance between the steel ball and the cage, effectively suppressing abnormal noise during high-speed operation, so that the R series bearings meet the strict requirements of quietness and stability in the field of precision machinery.

Q3: Which industries are suitable for using R series deep groove ball bearings?
R series deep groove ball bearings are widely used in motors, automobile gearboxes, household appliances and industrial robots due to their versatility. Ningbo Yuhong Bearing Co., Ltd. provides customized solutions for different industry needs, such as optimizing the sealing structure to enhance dustproof performance (suitable for agricultural machinery), or adjusting the clearance parameters to adapt to high temperature environments (such as metallurgical equipment), thereby helping customers shorten equipment maintenance cycles and reduce overall costs.

Q4: How does Ningbo Yuhong ensure the quality stability of R series bearings?
Relying on the ISO9001 quality management system, the company implements standardized control from raw material screening to finished product testing. For example, multi-stage filtration technology is used in the cleaning process to remove microscopic impurities to ensure the internal cleanliness of the bearing; in the final inspection stage, the dimensional tolerance is verified by a three-dimensional measuring instrument to ensure that each batch of products meets international standards. This extreme pursuit of details has made Yuhong R series bearings highly recognized in domestic and foreign markets.

Q5: What are the advantages of cooperating with Ningbo Yuhong on the R series bearing project?
Ningbo Yuhong Bearing Co., Ltd. not only provides high-quality products, but also focuses on creating long-term value for customers. Its fully automated production model shortens the delivery cycle, and the technical team can provide selection support and failure analysis services based on customer equipment parameters. Through open factory visits and customized cooperation plans, Yuhong looks forward to exploring new boundaries of efficient transmission technology with global partners.

The performance breakthrough of the R series deep groove ball bearings is inseparable from the dual empowerment of manufacturing process and quality management. Ningbo Yuhong Bearing Co., Ltd. is driven by technological innovation and is committed to providing more reliable and smarter bearing solutions for the global industrial field. If you need to learn more about product details or discuss cooperation opportunities, please feel free to contact us to jointly explore a new chapter in the development of the industry.