KET FR1-5 Inch Flange Bearing (Open/ZZS) | High-Speed Miniature Flanged Ball Bearing | Ningbo Kexiang Bearing Technology

Product Description:

Elevate Your Precision Engineering with the KET FR1-5 Inch Flange Bearing

Manufactured by the industry-leading Ningbo Kexiang Bearing Technology Co., Ltd., the KET FR1-5 is a premium miniature inch flange bearing engineered for high-speed, low-noise, and low-friction applications. Whether you are assembling advanced robotics, aerospace UAVs, or high-precision medical instruments, the FR1-5 delivers uncompromising reliability and operational longevity.

Designed with an integrated flange on the outer ring, the FR1-5 simplifies mounting and axial positioning in restricted spaces, eliminating the need for complex housing shoulders.

Key Features & Advantages:

• Premium Quality Manufacturing: Produced in our state-of-the-art facility in Ningbo, Zhejiang, China, adhering to strict ISO9001:2015 quality management standards.

• High-Speed Performance: Optimized internal geometry and superior surface finish allow for limiting speeds up to 71,000 RPM (with oil lubrication).

• Versatile Configurations: Available in both Open (FR1-5) for oil bath applications and Shielded (FR1-5ZZS) configurations to protect against dust and retain high-grade factory grease.

• Exceptional Durability: Subjected to rigorous roundness, hardness, and automatic noise testing to ensure smooth, vibration-free operation.

Technical Specifications (Model: FR1-5 / FR1-5ZZS):

• Brand: KET

• Manufacturer: Ningbo Kexiang Bearing Technology Co., Ltd.

• Bore Diameter (d): 2.380 mm

• Outer Diameter (D): 7.938 mm

• Flange Outer Diameter (D1): 9.119 mm

• Width / Height (Open - B): 2.779 mm

• Width / Height (Shielded - B1): 3.571 mm

• Flange Width (Open / Shielded): 0.584 mm / 0.787 mm

• Chamfer (r): 0.15 mm

• Basic Dynamic Load Rating (Cr): 550 N

• Basic Static Load Rating (Cor): 175 N

• Limiting Speed (Grease): 60,000 RPM

• Limiting Speed (Oil): 71,000 RPM

Target Applications: The ultra-compact size and high rotational accuracy make the KET FR1-5 ideal for:

• Drone (UAV) motors and gimbals

• Dental drills and medical diagnostic equipment

• Precision RC (Remote Control) models and servos

• Telecommunication devices and ATM mechanisms

• Micro stepper motors and brushed/brushless DC motors

Global Sourcing & Supply Chain Reliability: As a direct manufacturer based in the global manufacturing hub of Ningbo, China, Kexiang Bearings offers scalable B2B supply chain solutions. We provide competitive wholesale pricing, rapid global shipping, and extensive OEM/ODM customization capabilities for international distributors and original equipment manufacturers (OEMs) across Europe, North America, and Asia.

For bulk orders, custom lubrication requests, or to view our full technical catalog, please reference the "Ningbo Kexiang Bearing Technology Co., Ltd..pdf" documentation or contact our B2B sales team directly.