Sill Bearing
Sill Bearing
The 6304 bearing is a fundamental component within the deep groove ball bearing family, specifically belonging to the medium-weight 6300 series. With its standardized dimensions of 20mm (bore), 52mm (outer diameter), and 15mm (width), the 6304 bearing is engineered to handle both radial and axial loads at high speeds. As a leading China 6304 bearings supplier, we recognize that this specific model is the heartbeat of countless industrial machines.
Its versatility stems from its simple design: a single row of balls held between two polished raceways. Whether it is used in open form, shielded (ZZ), or sealed (2RS) variants, the 6304 bearing offers low friction, minimal vibration, and long service life. In the modern industrial era, where precision is non-negotiable, our factory leverages AI-driven manufacturing processes to ensure every 6304 bearing meets international ISO standards.
The global bearing market is projected to reach over $150 billion by 2030. The 6304 model remains a top-three most-procured item due to its balance of size and load capacity.
Modern factories are transitioning to "Smart Bearings." We are integrating sensor-ready housings for 6304 bearings to monitor heat and vibration in real-time.
As electric vehicles (EVs) replace internal combustion engines, the demand for high-RPM, low-noise 6304 bearings for electric motors has surged by 40%.
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Procuring from a China 6304 bearings factory like ours provides more than just cost savings. It offers a strategic logistics and technical advantage. SILL BEARING FACTORY is located in the beautiful and affluent place named Hangzhou Bay New Zone, which is not only close to the two biggest ports of China—Shanghai port and Ningbo Port, but also adjacent to Hangzhou—Ningbo Expressway, 329 State Line and Hangzhou- Ningbo Railway Line.
Our strategic location owns the advantage of transportation, as it only takes about 90 minutes to go to Hangzhou Xiaoshan Airport or Ningbo Lishe Airport. This proximity ensures that international buyers can receive samples within 3-5 days and bulk shipments within 2-3 weeks. Being near Ningbo Port, the world's busiest port by cargo tonnage, allows us to offer the most competitive freight rates globally.
Unlike standard trading companies, our factory offers deep customization. We provide:
Used in alternators, starters, and transmission systems for top brands.
Crucial for household appliances, industrial fans, and power tools.
Reliable performance in tractors, harvesters, and irrigation pumps.
Integrated into conveyor belts and robotic arms in Industry 4.0 factories.
The 6300 series deep groove ball bearings are designed to provide a higher load-carrying capacity compared to the 6000 and 6200 series for the same bore size. For example, a 6304 bearing has a larger ball diameter and deeper grooves, making it more resilient to impact loads. In heavy-duty environments like mining machinery or industrial gearboxes, the 6304 serves as a reliable guard against mechanical failure.
Our engineering team utilizes finite element analysis (FEA) to simulate stress points on the 6304 raceways. This allows us to optimize the contact angle and internal clearance (C3, C4 options), ensuring that thermal expansion during high-speed operation does not lead to seizure. When you partner with us, you are not just buying a metal part; you are investing in precision-engineered reliability.
As we look toward 2025 and beyond, the bearing industry is undergoing a digital transformation. AI and machine learning are now used to predict tool wear in our CNC grinding machines, ensuring that every 6304 bearing produced has a surface finish within nanometers of perfection. Furthermore, the push for sustainability is driving us to adopt carbon-neutral production methods.
Customization is the new standard. We are seeing a rise in demand for non-standard 6304 bearings with specialized coatings like Black Oxide or Zinc for corrosion resistance in marine environments. Our R&D department is at the forefront of these developments, ensuring that our clients always have access to the latest bearing technology.
In a post-pandemic world, supply chain stability is paramount. By choosing a factory based in Hangzhou Bay, you tap into a robust ecosystem of raw material suppliers and heat treatment specialists. This local synergy allows us to maintain production even when global markets fluctuate, providing you with a consistent supply of 6304 bearings year-round.
