KET 692 / 692ZZ Metric Miniature Ball Bearing (2x6x2.3mm) - High-Load Precision Micro Bearing

Product Description:

Core Selling Points

• Enhanced Load Capacity: Precision engineered with a 2mm inner diameter and an enlarged 6mm outer diameter, delivering a robust 330 N dynamic load rating for demanding micro-applications.

• High-Speed Stability: Capable of reaching up to 90,000 RPM with oil lubrication and 75,000 RPM with grease, ensuring flawless operation in high-speed micro-mechanisms.

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

• Uncompromised Quality Control: 100% precision-tested utilizing state-of-the-art roundness instruments and automatic noise testing equipment prior to global shipment.

Detailed Overview The KET 692 series deep groove ball bearing is an ultra-precision component designed strictly for advanced miniature mechanical systems requiring superior radial support. Established in 2008 in Ningbo, Zhejiang Province, our automated manufacturing facility operates under the internationally registered trademark "KET," supplying world-class metric miniature bearings to global OEM markets. The 692 model provides an optimal balance of extreme miniaturization and enhanced structural integrity, delivering true-to-design dimensional exactness with every production batch.

Exact Technical Specifications

• Brand: KET

• Model Variants: 692 (Open Type) / 692zz (Shielded Type)

• Inner Diameter (d): 2 mm

• Outer Diameter (D): 6 mm

• Width / Thickness (B/B1): 2.3 mm (Open) / 3 mm (Shielded)

• Chamfer (r): 0.15 mm

• Basic Dynamic Load Rating (Cr): 330 N

• Basic Static Load Rating (Cor): 98 N

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

• Limiting Speed (Oil Lubrication): Up to 90,000 RPM

Primary Industrial Applications The KET 1-3mm inner diameter ultra-miniature series is highly versatile and trusted by global precision engineers. Featuring a robust profile for its size class, the 692 metric bearing is specifically ideal for:

• High-speed micro motors, high-load cooling fans, and miniature robotic actuators.

• Remote control UAVs (Drones) and aerospace micro-mechanisms requiring extra stability.

• Advanced medical equipment and high-speed dental drills.

• Platinum jewelry manufacturing equipment and precision scientific testing instruments.

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.