This series consists of medium-width, flanged deep-groove ball bearings, representing the most versatile miniature specifications for industrial applications. The 60 series strikes an excellent balance between dimensions, rotational speed, and load capacity. The flange thickness and outer ring width are optimized to ensure uniform circumferential support for the outer ring during high-speed rotation, thereby minimizing operational vibration and noise.
Bearing Features
Fabricated from SUS420 stainless steel, these bearings offer favorable magnetic permeability, providing a distinct advantage over 300-series stainless steels in sensor-integrated applications requiring magnetic sensing control. With high standardization—featuring flange diameters and thicknesses that comply with international standards—they facilitate rapid replacement in precision fans, encoders, and miniature motors, significantly reducing equipment downtime for maintenance.
Technical Specifications
| Bearing Reference | Boundary Diameters | Basic Dynamic | Basic Static | Limiting Speeds | ||||||||||
| Flange | Open | Shield | d mm |
D mm |
Df mm |
B mm |
Bf mm |
B1 mm |
Bf1 mm |
rsmin mm |
Cr(kN) | Cor(kN) | Grease | Oil |
| F | SF602 | ZZ | 2 | 7 | 8.5 | 2.8 | 0.7 | 3.5 | 0.9 | 0.15 | 0.382 | 0.127 | 7.3 | 8.2 |
| F | SF603 | ZZ | 3 | 9 | 10.5 | 3 | 0.7 | 5 | 1 | 0.15 | 0.568 | 0.186 | 5.5 | 6.2 |
| F | SF604 | ZZ | 4 | 12 | 13.5 | 4 | 1 | 4 | 1 | 0.2 | 0.96 | 0.353 | 4.1 | 4.6 |
| F | SF605 | ZZ | 5 | 14 | 16 | 5 | 1 | 5 | 1 | 0.2 | 1.33 | 0.51 | 3.5 | 3.9 |
| F | SF606 | ZZ | 6 | 17 | 19 | 6 | 1.2 | 6 | 1.2 | 0.3 | 2.26 | 0.843 | 2.9 | 3.2 |
| F | SF607 | ZZ | 7 | 19 | 22 | 6 | 1.5 | 6 | 1.5 | 0.3 | 2.33 | 0.892 | 2.5 | 2.8 |
| F | SF608 | ZZ | 8 | 22 | 25 | 7 | 1.5 | 7 | 1.5 | 0.3 | 3.29 | 1.38 | 2.2 | 2.5 |
| F | SF609 | ZZ | 9 | 24 | 27 | 7 | 1.5 | 7 | 1.5 | 0.3 | 3.33 | 1.42 | 2 | 2.2 |

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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