KET R1810 / R1810ZZS Inch Miniature Ball Bearing (5/16" x 1/2") - Ultra-Precision High-Speed Bearing

Product Description:

Core Selling Points

• Exact Inch Specifications: Precision engineered with a standard 7.938mm (5/16") inner diameter and 12.700mm (1/2") outer diameter, specifically designed for seamless integration into North American and global inch-based mechanical assemblies [source: 1].

• Reliable High-Speed Stability: Capable of reaching up to 48,000 RPM with oil lubrication and 40,000 RPM with grease, ensuring flawless operational stability in high-speed micro-mechanisms [source: 1].

• Optimized Load Capacity: Delivers a solid 540 N basic dynamic load rating and 276 N static load rating, providing exceptional durability for compact micro-applications [source: 1].

• 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 [source: 1].

Detailed Overview The KET R1810 series deep groove ball bearing is a premium ultra-precision component belonging to our specialized Inch Miniature Series [source: 1]. Established in 2008 in Ningbo, Zhejiang Province, our highly automated manufacturing facility operates under the internationally registered trademark "KET," supplying world-class bearings to global OEM markets [source: 1]. The R1810 model provides the ultimate balance of standard 5/16" shaft sizing and excellent rotational speed. It delivers true-to-design dimensional exactness with every production batch for clients utilizing inch-based engineering standards.

Exact Technical Specifications

• Brand: KET [source: 1]

• Model Variants: R1810 (Open Type) / R1810ZZS (Shielded Type) [source: 1]

• Inner Diameter (d): 7.938 mm (5/16 Inch) [source: 1]

• Outer Diameter (D): 12.700 mm (1/2 Inch) [source: 1]

• Width / Thickness (B/B1): 3.967 mm (Open) / 3.967 mm (Shielded) [source: 1]

• Chamfer (r): 0.15 mm [source: 1]

• Basic Dynamic Load Rating (Cr): 540 N [source: 1]

• Basic Static Load Rating (Cor): 276 N [source: 1]

• Limiting Speed (Grease Lubrication): Up to 40,000 RPM [source: 1]

• Limiting Speed (Oil Lubrication): Up to 48,000 RPM [source: 1]

Primary Industrial Applications The KET Inch Miniature Series is highly versatile and trusted by global precision engineers, particularly in North American and European markets [source: 1]. Featuring an industry-standard 5/16" bore profile, the R1810 bearing is specifically ideal for:

• High-speed industrial micro motors, precision cooling fans, and compact robotic actuators [source: 1].

• Remote control UAVs (Drones), advanced RC models, and aerospace micro-mechanisms [source: 1].

• Advanced medical equipment, delicate surgical tools, and high-speed dental drills [source: 1].

• Platinum jewelry manufacturing equipment and precision scientific testing instruments [source: 1].

Strategic Manufacturing Partner Qualifications

• Internationally Certified Quality Systems: We operate strictly under rigorous global quality management frameworks, proudly holding dual ISO9001 certifications [source: 4, 9] and the stringent automotive industry standard IATF16949 [source: 8].

• Recognized Engineering Innovation: Our continuous investment in engineering R&D is officially validated by our recognition as a High-Tech Enterprise [source: 5] and a Technology-Based SME in Zhejiang Province [source: 10].

• 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 [source: 6, 7].

• Uncompromised Quality Control: 100% precision-tested utilizing state-of-the-art roundness instruments and automatic noise testing equipment prior to global shipment [source: 1].

Are You Reviewing Your Bearing Sourcing Costs? Let's Talk. Many engineering and procurement teams are currently looking to balance premium quality with better cost control. If you are reviewing your supplier options for the upcoming purchasing cycle, I would be happy to share how we’ve helped similar businesses reduce their sourcing costs without compromising on high-speed performance.

Reply to this email or reach out directly to discuss your specific requirements or to request free evaluation samples.

• Global Sales Representative: Ryan Fan

• Direct Email: ryan.fan@ketprecisionbearings.com

• WhatsApp: +86-18067291918

• Official Website: www.ketprecisionbearings.com