KET 602 / 602ZZ Metric Miniature Ball Bearing (2.5x7x2.8mm) - High-Speed Precision Micro Bearing

Product Description:

Core Selling Points

• Exact Metric Specifications: Precision engineered with a 2.5mm inner diameter and 7mm outer diameter, specifically designed for seamless integration into global metric-based mechanical assemblies.

• Extreme High-Speed Stability: Capable of reaching an extraordinary 75,000 RPM with oil lubrication and 63,000 RPM with grease, ensuring flawless operational stability under high rotational stress.

• Reliable Load Capacity: Delivers a solid 385 N basic dynamic load rating and 127 N static load rating, providing exceptional durability for compact micro-applications.

• Factory-Direct Supply: Manufactured by Ningbo Kexiang Bearing Technology Co., Ltd. with a robust annual capacity of 100 million sets, securing highly competitive B2B wholesale pricing for global procurement.

Detailed Overview The KET 602 series deep groove ball bearing is a premium ultra-precision component belonging to our specialized Metric Miniature Series. Established in 2008, our highly automated manufacturing facility operates under the internationally registered trademark "KET," supplying world-class bearings to global OEM markets. The 602 model provides the ultimate balance of a compact 2.5mm shaft size and incredible rotational speed. It delivers true-to-design dimensional exactness with every production batch for clients utilizing strict metric engineering standards.

Exact Technical Specifications

• Brand: KET

• Model Variants: 602 (Open Type) / 602ZZ (Shielded Type)

• Inner Diameter (d): 2.5 mm

• Outer Diameter (D): 7 mm

• Width / Thickness (B/B1): 2.8 mm (Open) / 3.5 mm (Shielded)

• Chamfer (r): 0.15 mm

• Basic Dynamic Load Rating (Cr): 385 N

• Basic Static Load Rating (Cor): 127 N

• Limiting Speed (Grease Lubrication): Up to 63,000 RPM

• Limiting Speed (Oil Lubrication): Up to 75,000 RPM

Primary Industrial Applications The KET Metric Miniature Series is highly versatile and globally trusted by precision engineers. Featuring an industry-standard 2.5mm bore profile, the 602 bearing is specifically ideal for:

• Ultra-high-speed micro motors, precision cooling fans, and delicate robotic actuators.

• Remote control UAVs (Drones), advanced RC models, and aerospace micro-mechanisms.

• Advanced medical equipment and precision scientific testing instruments enduring high operational stress.

Why Choose KET Bearings as Your Strategic Manufacturing Partner?

• World-Class Manufacturing Facility: Located at No.555 Fengshou Road, Jiaochuan Street, Zhenhai District, Ningbo, Zhejiang, China, our advanced factory employs state-of-the-art testing equipment—including automatic noise tests and roundness instruments—to guarantee 100% precision and defect-free compliance.

• Internationally Certified Quality Systems: We operate strictly under rigorous global quality management frameworks. We prioritize complete transparency with our B2B enterprise partners and proudly provide our official certifications upon request.

• Recognized Engineering Innovation: Our continuous investment in engineering R&D is validated by our official recognition as a High-Tech Enterprise and a Technology-Based SME in Zhejiang Province.

• Global Material Safety & Environmental Compliance: We exclusively utilize premium raw materials that meet strict international safety directives, fully backed by our comprehensive third-party SGS laboratory testing reports.

• OEM & Customization Capabilities: Beyond our standard metric catalog, our specialized R&D team is fully equipped to design, engineer, and customize non-standard precision bearings tailored exactly to your unique project requirements.

Contact Us for Global Wholesale & Bulk Purchasing

Secure your mechanical supply chain with uncompromising engineering quality, reliable delivery schedules, and competitive factory-direct pricing. Contact our international business development department today for B2B quotes, comprehensive technical datasheets, or to request evaluation samples.