Engineered for high-speed and low-friction performance, this precision miniature bearing is the perfect solution for compact industrial mechanisms. Trusted by manufacturers and SMEs across Europe and Central Asia, the KET FR133 guarantees stability and long service life for your most demanding projects.
Key Features
Easy Installation: The flanged outer ring ensures accurate positioning and prevents axial movement inside the housing.
High-Speed Performance: Designed to handle extreme rotation speeds smoothly, reaching up to 95,000 RPM with oil lubrication.
Premium Durability: Manufactured with high-quality bearing steel to resist wear and maintain precision over time.
Versatile Options: Available in both Open (FR133) and Shielded (FR133ZZS) designs to suit your specific dust and environment requirements.
Technical Specifications
Model: FR133 (Open) / FR133ZZS (Shielded)
Inner Diameter (d): 2.380 mm
Outer Diameter (D): 4.762 mm
Flange Outer Diameter (D1): 5.944 mm
Bearing Width (B): 1.588 mm (Open) / 2.380 mm (Shielded)
Basic Dynamic Load (Cr): 188 N
Basic Static Load (Cor): 60 N
Limiting Speed (Grease): 80,000 RPM
Limiting Speed (Oil): 95,000 RPM
Industry Applications
The compact size and high reliability of the KET FR133 make it highly suitable for advanced technology sectors, including:
Unmanned Aerial Vehicles (UAVs) and drones
Micro electric motors and brushless motors
Robotics and automation equipment
Precision machine tools and instruments
Why Choose KET Precision Bearings?
We specialize in providing high-quality bearings with stable delivery times and competitive B2B pricing. Whether you need standard sizes or customized non-standard bearings.
Strategic Manufacturing Partner Qualifications
Internationally Certified Quality Systems: We operate strictly under rigorous global quality management frameworks, proudly holding dual ISO9001 certifications and the stringent automotive industry standard IATF16949.
Recognized Engineering Innovation: Our continuous investment in engineering R&D is officially validated by our recognition as a High-Tech Enterprise and a Technology-Based SME in Zhejiang Province.
Global Material Safety Compliance: We exclusively utilize premium raw materials that meet strict international safety directives. Our products pass comprehensive third-party SGS laboratory testing for SVHC and RoHS compliance.
Uncompromised Quality Control: 100% precision-tested utilizing state-of-the-art roundness instruments and automatic noise testing equipment prior to global shipment.
Contact Us for Global Wholesale & Bulk Purchasing
Optimize your supply chain costs without compromising on extreme speed and precise axial positioning. Contact our international business development department today for B2B quotes, comprehensive technical datasheets, or to request free evaluation samples.
Customized precision solutions for industrial applications. OEM/ODM support.
Can you customize bearings for specific industry applications?
Yes, absolutely. In addition to our standard product lines, we can customize various non-standard bearings exactly according to customer requirements and technical drawings.
What is your minimum order quantity (MOQ)?
Our MOQ is typically 100 pieces for standard bearings. For custom bearings, MOQ may vary depending on specifications.
How long is the delivery time?
Standard bearings: 3-7 days. Custom bearings: 15-25 days. Express shipping available for urgent orders.
How do you guarantee the quality of your bearings?
Quality is our core focus. Our factory operates under strict quality management systems and holds the ISO9001 Quality Management System Certificate. We also utilize highly advanced production and testing equipment, including automatic noise tests, automatic bore tests, roundness instruments, spectrometers, and bearing life testing machines to ensure every batch meets global standards.
What certifications do your products and factory hold?
Quality is our priority. Our factory is certified with ISO9001 and IATF 16949 Quality Management Systems. We are recognized as a High-Tech Enterprise, and our bearings pass strict SGS (RoHS/SVHC) testing.
Do you provide after-sales support?
Yes. We provide technical assistance and responsiveafter-sales service for Precision bearing, including product selection,installation questions and replacement support.