Jiangsu Yinghong Transmission Technology Co., Ltd. Home / Products / Flanged Bearings / Bearing Steel Flanged Bearings / Inch FR-Series / FR144/FR2-5/FR2-6/FR2/FR2A Series Inch Flanged Bearings

FR144/FR2-5/FR2-6/FR2/FR2A Series Inch Flanged Bearings

This series encompasses a variety of imperial-sized variants, characterized by diverse specifications designed to meet the demands of complex operating conditions. Highly granular options are available regarding both inner diameter and width. The standardized flange design effectively addresses the challenge of positioning bearings within housings of varying wall thicknesses. 

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Bearing Features

Models such as the FR144 are frequently employed in RC drive systems or small drone rotor shafts, where exceptional vibration damping and wear resistance are required. The dense microstructure of the bearing steel ensures resistance to metal fatigue cracking under high-speed centrifugal forces. Prior to shipment, these bearings undergo rigorous dynamic balancing tests to ensure silent operation, thereby enhancing the end-user experience.

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 FR144 ZZ 0.125 3.175 0.25 6.35 0.296 7.518 0.0938 2.381 0.023 0.584 0.1094 2.778 0.031 0.787 0.0039 0.1 0.314 0.108 6.9 7.8
F FR2-5 ZZ 0.125 3.175 0.3125 7.938 0.359 9.119 0.1094 2.778 0.023 0.584 0.1406 3.572 0.031 0.787 0.0039 0.1 0.559 0.176 5.9 6.7
F FR2-6 ZZ 0.125 3.175 0.375 9.525 0.422 10.719 0.1094 2.778 0.023 0.584 0.1406 3.572 0.031 0.787 0.0039 0.1 0.637 0.225 5.2 5.8
F FR2 ZZ 0.125 3.175 0.375 9.525 0.44 11.176 0.1562 3.969 0.03 0.762 0.1562 3.969 0.03 0.762 0.0118 0.3 0.627 0.216 5.2 5.8
- FR2A ZZ 0.125 3.175 0.5 12.7 - - 0.1719 4.366 - - 0.1719 4.366 - - 0.0118 0.3 0.637 0.225 4.2 4.7

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.

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