Sill Bearing
Sill Bearing
The 6307 ZZ bearing is one of the most widely used components in the global industrial landscape. As a deep groove ball bearing with a 35mm bore, 80mm outer diameter, and 21mm width, its versatility is unmatched. The "ZZ" suffix indicates that the bearing is shielded on both sides with metal, providing excellent protection against dust and large contaminants while retaining high-speed lubrication.
In the current global market, the 6307 ZZ is essential for a variety of industries, including electric motor manufacturing, automotive transmissions, and heavy industrial machinery. The demand for these bearings has seen a significant surge as developing nations in Southeast Asia and South America accelerate their industrialization efforts. Meanwhile, in North America and Europe, the focus has shifted toward high-precision, low-noise variants of the 6307 ZZ to satisfy the requirements of advanced automation and sustainable energy sectors.
P0, P6, P5 Quality Standards Available
Integration of sensors into 6307 series for real-time vibration and temperature monitoring to prevent industrial downtime.
Manufacture using high-grade recycled steel and specialized low-friction lubricants to reduce energy consumption in HVAC and motors.
Surface treatment at the atomic level to enhance hardness and fatigue life of 6307 ZZ bearings in extreme environments.
Modern industrial trends indicate a shift towards Condition-Based Maintenance (CBM). High-quality 6307 ZZ bearing manufacturers in China are now providing products that support longer maintenance cycles. The global demand is not just for a component, but for a solution that offers stability under varying thermal conditions and high centrifugal forces.
International procurement managers looking for Bearing 6307 ZZ prioritize three core factors: Quality Consistency, Scalability, and Supply Chain Resilience. We understand that a single bearing failure can lead to losses of thousands of dollars per hour in a production line.
Export Countries
Monthly Output
Testing Rate
Global Support
The 6307 ZZ bearing adapts perfectly to diverse environments around the globe. Whether it's the high humidity of tropical regions or the freezing temperatures of northern industrial zones, its performance remains steadfast.
The most common application. Used in both stator and rotor assemblies where low noise (Z3/Z4 grade) is paramount for domestic and commercial appliances.
In harvesting equipment and tractors, the ZZ shield protects the internal balls from soil, dust, and moisture, extending the machine's life in the field.
Conveyor systems in warehouses and airports rely on the 6307 ZZ for smooth, continuous operation under varied radial loads.
| Feature | Specification |
|---|---|
| Bore Diameter | 35 mm |
| Outer Diameter | 80 mm |
| Width | 21 mm |
| Dynamic Load Rating | 33.4 kN |
| Static Load Rating | 19.2 kN |
Strategic Location & Logistics
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. Besides, it owns the advantage of transportation, as it only takes about 90 minutes to go to Hangzhou Xiaoshan Airport or Ningbo Lishe Airport.
As a leading manufacturer, we combine geographical advantages with state-of-the-art technology to offer unmatched value.
The bearing industry in China has undergone a massive transformation. From simple mass production to becoming a global hub for high-end precision components, our factory stands at the forefront of this revolution. By integrating AI-driven quality control and cloud-managed supply chains, we provide our global partners with a level of reliability that was previously only associated with European or Japanese brands.
For international buyers, sourcing from a factory in the Hangzhou Bay New Zone means accessing a cluster of specialized suppliers, leading to faster innovation cycles and more competitive pricing due to specialized industrial ecosystems.
As we look toward 2025 and beyond, the role of a Bearing 6307 ZZ manufacturer goes beyond mere production. It is about becoming an engineering partner. The global market is demanding higher efficiency, which translates to bearings that can withstand higher RPMs with lower heat generation.
In our China-based R&D centers, we are experimenting with ceramic hybrid bearings and specialized nitrogen-treated steels. These materials offer the 6307 series an even longer lifespan in corrosive environments, such as chemical processing plants or offshore wind turbines. While the standard 6307 ZZ is a steel-shielded bearing, we also provide options with fluorine rubber seals (2RS) for better chemical resistance.
Modern procurement is digital. We offer our clients real-time tracking of their orders and digital twins of the batches produced. This transparency is why major manufacturers in the USA, Germany, and Japan are turning to high-end Chinese factories. The proximity to Ningbo and Shanghai ports isn't just a geographical fact—it's a strategic advantage that allows us to integrate seamlessly into "Just-In-Time" (JIT) manufacturing workflows across the globe.
Our commitment at SILL BEARING FACTORY is to provide not just a component, but the core of your machine's reliability. By choosing our 6307 ZZ bearings, you are investing in decades of metallurgical expertise and a logistics network that spans the globe.
Whether you are a distributor looking for bulk supply or an OEM requiring specific tolerances, our facility in the Hangzhou Bay New Zone is equipped to exceed your expectations. We welcome global partners to visit our site and witness the future of bearing manufacturing firsthand.
