Bearing 6303 [Nachi]

This listing presents the genuine Nachi 6303 deep groove ball bearing, meticulously precision-manufactured in Japan. Sourced directly from Nachi-Fujikoshi Corporation, this industrial-grade component embodies the rigorous engineering and stringent quality controls inherent in Japanese manufacturing standards. Its robust design facilitates efficient rotary motion in mechanical assemblies requiring reliable radial and axial load support, ensuring consistent operational integrity.

Technical Specifications

• Bearing Type: Single Row Deep Groove Ball Bearing, Open Configuration
• Bore Diameter (d): 17 mm
• Outer Diameter (D): 47 mm
• Width (B): 14 mm
• Basic Dynamic Load Rating (Cr): 13.7 kN
• Basic Static Load Rating (C0r): 6.6 kN
• Limiting Speed (Grease): 13,000 RPM
• Limiting Speed (Oil): 17,000 RPM
• Material: Premium high-carbon chromium bearing steel (JIS SUJ2 equivalent)
• Cage Material: Pressed steel
• Manufacturing Origin: Japan

Compatibility & Fitment

• Automotive: Utilized in alternators, water pumps, tensioner pulleys, and some wheel applications across various vehicle models.
• Electric Motors: Suitable for a wide range of small to medium-sized motors in power tools, HVAC units, and industrial fans.
• Agricultural: Employed in critical drive components of tractors, cultivators, and other farm equipment.
• Industrial Equipment: Applied in gearboxes, conveyor systems, pumps, and light-duty machinery requiring precise rotational support.
• Motorcycle: Applicable in certain wheel hubs, engine components, and transmission shafts for diverse models.
• General Mechanical: Versatile for custom builds and as a direct replacement for systems requiring a 17x47x14mm bearing.

Key Performance Benefits

• Precision Engineering: Manufactured to exacting JIS and ISO standards, ensuring optimal dimensional accuracy and consistent rotational performance.
• High Durability: Constructed from Nachi's premium bearing steel, providing exceptional resistance to fatigue, abrasion, and surface wear for extended operational life.
• Optimized Load Capacity: Capably manages substantial radial and moderate axial loads, contributing to long-term system stability and reliability.
• Reduced Friction & Heat: Optimized internal geometry minimizes rotational resistance, improving mechanical efficiency and mitigating heat buildup.
• Vibration & Noise Attenuation: Meticulous manufacturing tolerances and balanced construction ensure smoother operation and reduced noise levels.
• Reliable Operation: Designed for sustained, trouble-free performance in demanding industrial and automotive applications, reducing maintenance and downtime.

Authenticity Guarantee

We guarantee every Nachi 6303 bearing supplied is 100% genuine, directly sourced from authorized Nachi-Fujikoshi distribution networks. Each unit originates from Nachi's manufacturing facilities in Japan, ensuring the authentic material composition, precision machining, and validated performance characteristics. This direct procurement strategy rigorously mitigates risks associated with counterfeit components, safeguarding your machinery's operational reliability and component lifespan. Your investment in genuine Nachi hardware is intrinsically protected by this unwavering dedication to product authenticity and quality standards.

Integrate the Nachi 6303 bearing for assured mechanical integrity, consistent operational reliability, and long-term functional excellence in your critical and demanding applications.