The R1810 is a quintessential example of an inch-series thin-section precision bearing, featuring an inner diameter of 7.938 mm (0.3125 inches). This product is engineered to minimize radial cross-sectional dimensions to the absolute limit—boasting an outer diameter of just 12.7 mm and a thickness of 3.967 mm—while simultaneously ensuring fundamental rotational rigidity. This "large inner diameter, small outer diameter" configuration presents an ideal solution for addressing the rotational support challenges inherent in compact precision equipment.
Bearing Features
Regarding material selection, the product strictly adheres to rigorous bearing steel standards, thereby guaranteeing the material's physical stability under high rotational speeds. It achieves a limiting speed of up to 36,000 rpm under oil lubrication and possesses a basic dynamic load rating of 0.539 kN. This signifies that the bearing is capable of delivering reliable structural support—preventing vibration or run-out during high-speed operation—while simultaneously maintaining high-speed responsiveness.
This specific model finds extensive application across various fields, including computer peripherals, miniature rotary encoders, and precision instrumentation. Through its sophisticated raceway grinding technology and exceptionally low rotational torque, the R1810 strikes an optimal balance between low power consumption and high precision. Its smooth operational characteristics not only serve to mitigate electromagnetic interference within the system but also effectively enhance the accuracy of the equipment's signal acquisition capabilities.
Technical Specifications
| Bearing Reference | Boundary Diameters | Basic Dynamic | Basic Static | Limiting Speeds | ||||||||||||||||||
| Flange | Open | Shield | d inch |
d mm |
D inch |
D mm |
Df inch |
Df mm |
B inch |
B mm |
Bf inch |
Bf mm |
B1 inch |
B1 mm |
Bf1 inch |
Bf1 mm |
rsmin inch |
rsmin mm |
Cr kN |
Cor kN |
Grease | Oil |
| F | R1810 | ZZ | 0.3125 | 7.938 | 0.5 | 12.7 | 0.547 | 13.894 | 0.1562 | 3.969 | 0.031 | 0.787 | 0.1562 | 3.969 | 0.031 | 0.787 | 0.0059 | 0.15 | 0.539 | 0.274 | 3.2 | 3.6 |

Jiangsu Yinghong Transmission Technology Co., Ltd. (YHU) was established in 2024 through the joint investment of Dongguan Yinghong, Linqing Boshuo, and Yancheng Jiwei. As a group-based enterprise specializing in the research, development, manufacturing, and service of transmission products, we leverage extensive industry experience and strong technical expertise to provide reliable, energy-efficient transmission solutions for customers worldwide.
The company covers more than 70 mu of land and operates nearly 10,000 square meters of manufacturing facilities. As a professional manufacturer of precision special bearings in China, we have introduced advanced Japanese precision manufacturing technology and equipped our facility with automated production lines and high-precision testing equipment. A comprehensive quality management system ensures consistent product quality and reliable performance.
As a National High-Tech Enterprise, Yinghong holds multiple invention and utility model patents and has obtained internationally recognized certifications including IATF 16949, RoHS, CE, and SGS. These certifications enable us to meet diverse customer requirements and provide effective solutions for demanding applications and complex technical challenges.
We specialize in the production of high-precision deep groove ball bearings and custom non-standard bearings under our registered trademark, “YHU”. Our main products include bearing steel bearings, stainless steel bearings, ceramic bearings, and plastic bearings.
YHU bearings are designed to deliver low noise, low vibration, low friction, high precision, great sealing performance, and high-speed operation. They also offer self-lubrication, corrosion resistance, rust resistance, acid and alkali resistance, chemical resistance, electrical insulation, non-magnetic properties, high-temperature resistance, low-temperature adaptability, and long service life, making them suitable for demanding operating environments.
Our bearings and bearing assemblies are widely used in electric motors, power tools, pneumatic tools, robotics, drones, household appliances, precision instruments, semiconductor equipment, medical devices, marine equipment, aerospace applications, financial equipment, textile machinery, fishing equipment, and a wide range of specialized industrial equipment.
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