Long-term use of ball bearings causes their temperature to become too high. Will this form a vicious cycle in the long run?
Long term use of ball bearings can lead to high temperatures, which can indeed form a vicious cycle....
Read MoreR series of inch deep groove ball bearings
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 |
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Read MoreQ1: 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.