This series of deep groove ball bearings strikes an optimal balance between compact design and reliable performance, capable of accommodating a wide range of shaft diameters. Classified as an equal-section thin-wall bearing series, its cross-sectional dimensions remain relatively constant as the bearing size increases—a feature that offers significant convenience to engineers when designing standardized product lines.
Bearing Features
The internal raceways undergo precision grinding and are paired with high-precision steel balls, resulting in minimal vibration and extremely low noise levels during operation, thereby meeting the stringent requirements for quiet environments demanded by high-end equipment. Despite its lightweight and thin-profile design, the series is engineered with an optimized combination of ball diameter and raceway curvature, enabling it to effectively withstand both radial loads and bidirectional axial loads. It is widely utilized in applications such as stepper motors, drone motors, bicycle bottom brackets, various precision encoders, small cooling fans, and a diverse array of automated control devices.
Technical Specifications
| Bearing Reference | Boundary Diameters | Basic Dynamic | Basic Static | Limiting Speeds | |||||||||
| Flange | Open | Shield | seal | d(mm) | D(mm) | Df(mm) | B/B1(mm) | Bf(mm) | rsmin(mm) | Cr(kN) | Cor(kN) | Grease | Oil |
| F | 6800 | ZZ | 2RS | 10 | 19 | 21 | 5 | 1 | 0.3 | 1.72 | 0.843 | 2.3 | 2.6 |
| F | 6801 | ZZ | 2RS | 12 | 21 | 23 | 5 | 1.1 | 0.3 | 1.91 | 1.04 | 2 | 2.2 |
| F | 6802 | ZZ | 2RS | 15 | 24 | 26 | 5 | 1.1 | 0.3 | 2.07 | 1.25 | 1.7 | 1.9 |
| F | 6803 | ZZ | 2RS | 17 | 26 | 28 | 5 | 1.1 | 0.3 | 2.23 | 1.46 | 1.5 | 1.7 |
| F | 6804 | ZZ | 2RS | 20 | 32 | 35 | 7 | 1.5 | 0.3 | 4.02 | 2.46 | 1.3 | 1.4 |
| F | 6805 | ZZ | 2RS | 25 | 37 | 40 | 7 | 1.5 | 0.3 | 4.3 | 2.93 | 1.1 | 1.2 |
| F | 6806 | ZZ | 2RS | 30 | 42 | 45 | 7 | 1.5 | 0.3 | 4.54 | 3.4 | 0.9 | 1 |

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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