KET 6702 / 6702ZZ Deep Groove Ball Bearing (15x21x4mm) - Thin Section Precision Metric Bearing

Product Description:

Overview The KET 6702 series deep groove ball bearing is a premium ultra-thin section component engineered for space-constrained and weight-sensitive mechanical applications. Manufactured by Ningbo Kexiang Bearing Technology Co., Ltd., a specialized bearing manufacturer established in 2008. Operating under our internationally registered trademark "KET," we supply highly precise metric miniature bearings to global B2B markets. With an impressive annual production volume of 100 million bearing sets, our automated facilities ensure stable, high-volume supply chains and factory-direct pricing for OEM manufacturers worldwide.

Key Technical Specifications

• Brand: KET

• Model Variants: 6702 (Open Type) / 6702zz (Shielded Type)

• Inner Diameter (d): 15 mm

• Outer Diameter (D): 21 mm

• Width / Thickness (B/B1): 4 mm

• Chamfer (r): 0.3 mm

• Basic Dynamic Load Rating (Cr): 937 N

• Basic Static Load Rating (Cor): 582 N

• Limiting Speed (Grease Lubrication): Up to 13,000 RPM

• Limiting Speed (Oil Lubrication): Up to 11,000 RPM

Primary Industrial Applications The KET 10-20mm inner diameter miniature series is highly versatile and trusted by global engineers. Featuring a compact 15x21x4mm profile, the lightweight 6702 bearing is specifically ideal for:

• Downstream motor assembly, advanced UAV (Drone) motors, and compact brushless motors.

• Precision medical equipment, scientific instruments, and optical devices.

• ATM machines, cash counters, and commercial printers.

• High-end fishing gear, specialized household appliances, and remote control toys.

Why Choose KET Bearings as Your Strategic Manufacturing Partner?

• World-Class Manufacturing Facility: Located at No.555 Fengshou Road, Jiaochuan Street, Zhenhai District, Ningbo, China, our 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 global quality management frameworks. We prioritize complete transparency with our enterprise partners and proudly provide our official certifications upon request.

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

• Material Safety & Environmental Compliance: We 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 catalog, our R&D team is fully equipped to customize various non-standard bearings tailored exactly to your unique engineering requirements.

Contact Us for Global Wholesale & Bulk Purchasing Secure your 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.