SR155 Series SUS304 Stainless Steel Bearings

The R155 bearing combines adherence to imperial precision standards with the superior oxidation resistance of SUS304 stainless steel. Its design prioritizes the durability of the sealing structure; PTFE seals are often selected to complement the material's robust chemical resistance. In terms of performance, the bearing significantly outperforms standard stainless steel bearings in acid, alkali, and salt spray tests. 

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Bearing Features

These characteristics make it indispensable for applications such as small-scale agitation mechanisms in chemical processing equipment, laboratory centrifuges, and marine monitoring devices. Additionally, the good ductility of the 304 material allows for a degree of tolerance regarding minor mating surface irregularities during installation, thereby reducing the risk of premature failure caused by installation stress.

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 SR155 ZZ 0.1562 3.969 0.3125 7.938 0.359 9.119 0.1094 2.778 0.023 0.584 0.125 3.175 0.036 0.914 0.0039 0.1 0.363 0.147 5.5 6.2

About Us

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.

Honor

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